How does the author use specific details to explain what umami is? Use information from the text to support your answer.
Umami, the Fifth Taste



A potato chip’s sharp saltiness. A chocolate bar’s sweetness. The puckery sourness of a lemon. The bitterness of broccoli. Until recently, scientists agreed that these four were the only tastes our tongues detected, and that combinations of salty, sweet, sour, and bitter produced the complex flavors we enjoy in food.

But first, what is taste? We taste with our tongues, although our noses contribute to what the senses experience when we eat. We have trouble tasting when we have a cold. That’s because our noses are responsible for creating what we recognize as flavor. Taste expert Professor Tom Finger defines flavor as “a combination of taste and smell.” Professor Finger offers a simple experiment that illustrates the difference between taste and flavor: Chew a jellybean while holding your nose closed. Can you recognize the flavor? But open your nose and keep chewing. You should know exactly what you’re eating: cherry, strawberry, or watermelon.


Taste happens on our tongues. If you look at your tongue in a mirror, you’ll see that it is covered with tiny bumps called papillae. Inside the papillae are cells too small to see; these are called taste buds. After you eat a potato chip, and the saliva in your mouth has begun to break it down, the chip moves over some of your tongue’s thousands of papillae and reaches the taste buds. Chemical receptors1 in the buds that respond to salt then send a “salty” signal to your brain. Some people, called “supertasters,” have more papillae than others. Supertasters react strongly to the tastes in foods, especially those that are bitter.

The sides of our tongues are more sensitive than the middle, and the back is especially sensitive to bitterness. Scientists believe that this extra sensitivity helped to prevent early humans from swallowing poisonous or rotten foods.

Over a hundred years ago, a chemistry professor in Japan named Kikunae Ikeda believed there was a fifth taste to which our tongues reacted. This taste was not sweet, sour, bitter, or salty. It was different, rich, and distinct. Professor Ikeda enjoyed this taste in asparagus, tomatoes, cheese, meat, and especially in a savory Japanese seaweed broth called dashi. Professor Ikeda isolated the chemical that gave dashi its taste: glutamic acid. He named this

new, fifth taste “umami,” which means “delicious.”

It wasn’t until 2002 that the taste receptor for umami was located and the fifth taste was completely understood. But long before science confirmed it, people enjoyed the taste of umami-rich foods: soy sauce, mushrooms, ketchup, cooked meats (think cheeseburgers and

pepperoni pizzas), and Parmesan cheese. Scientists believe that humans came to enjoy the distinct umami taste because of our need to eat protein-rich foods.

Like its brother and sister tastes, umami is uniquely itself. Umami has a depth described as “mouthfulness.” Others have declared that umami is the taste of “yum” or “pure deliciousness.” However we explain the fifth taste, it’s hard to imagine a great meal that isn’t just a little bit umami.

Answers

Answer 1

Answer: The author uses imagery and diction to help desicribe the word "umami"

Explanation:

The author uses imagery and diction to help desicribe the word "umami".  The author writes how "This taste was not sweet, sour, bitter, or salty. It was different, rich and distinct." This imagery allows the reader to clearly taste and smell what is happening. The author then goes on to explain how Umami has a depth described as "mouthfulness" or "pure deliciousness" The author uses diction to refer to the linguistic choices he or she makes to effectively convey an idea, a point of view, or tell a story.


Related Questions

I. Write a cinquain of your own.
Remember to select adjectives that describe sight, sound, taste, smell and touch. These will help develop a stronger picture of what you are describing.

Topic - noun
Two adjectives
Three verbs that tell what the noun in the first line does
Phrase of four words
Repeat Topic - using a synonym or similar word for the noun

Type the text of your Cinquain in the space below.


II. Write a shaped poem.

Using your own initial, either first or last, write a short shaped poem. Use as many words as you can that begin with your initial. Write your poem and decorate it as imaginatively as possible. Save it to put in your poetry book.

Answers

A cinquain of my own will be:

Staying fit is staying healthy.Starting fit makes you happy.A healthy body is a happy soul.Workout and have a walk.Always start fit.

What is a cinquain?

It should be noted that a cinquain simply means a poem that has five lines.

In this case, such a poem is illustrated above as it has five lines.

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Is a topic noun bc I had this n school before

Create your own pen picture.

Pick a familiar subject and type a pen picture of your own. A pen picture is a very short, three-lined poem. Each line is a metaphor or description of the subject of the poem. The lesson titled "Poetic Forms (1)" has models to look at if you need them. Remember, poetry paints ideas using words. Share your pen picture with a friend.

Answers

Answer:


An ocean voyage

As waves break in with a bow

The sea welcomes me.

Answer:

Explanation:

the softest whisper

beckons me closer to you

i love you dearest

Write three nouns. Try and make up three words for each noun by making a rhyming word. Example: butterfly: tutterfly, wutterfly, shafutterfly

III. Type a short, funny story using invented words for as many things as you can.

Pretend you are in a world that has animals, birds, trees, useful tools, and people that have never been seen before. You are to invent names for all of them.

Answers

Walk
Talk
Swim
Walkathon
Talkathon
Swimathon

Once in our school there were three challenge days.
On the first day we had a swimathon. We were to swim as many laps as possible. The more laps we swim the less laps we had to run in GYM class. Certainly I wanted a year off of running so I swam like a dolphin with a diarrhea.
On the 2nd day we had a walkathon, the more miles we walked the less miles we would have to walk back home. So I went directly home. I was told I misunderstood the assignment. I don’t know.
On the 3rd day, we had a talkathon !
I won, of course! I can talk for hours, especially when I brought my loudspeaker!
Ice cream
Dream,
Team
Beam
Steam

Jakes biggest dream since a child was to be in the nba ,One day jake and his basketball team went to a home game ,and by the end of the game the suns beam was making them so hot they decided to go get ice cream afterwards,by the time he got home around 10 Pm, his mom was cooking his favorite meal she served him,he was so hungry he was ready to eat but he had to wait because the food was so hot you could see the steam rising up causing a sweat to the tip of his nose

STORIES OF USEFUL INVENTIONS, excerpt
By S. E. Forman

1911

THE MATCH

There never was a time when the world was without fire, but there was a time when men did not know how to kindle fire; and after they learned how to kindle one, it was a long, long time before they learned how to kindle one easily. In these days we can kindle a fire without any trouble, because we can easily get a match; but we must remember that the match is one of the most wonderful things in the world, and that it took men thousands of years to learn how to make one. Let us learn the history of this familiar little object, the match.

Fire was first given to man by nature itself. When a forest is set on fire by cinders from a neighboring volcano, or when a tree is set ablaze by a thunderbolt, we may say that nature strikes a match. In the early history of the world, nature had to kindle all the fires, for man by his own effort was unable to produce a spark. The first method, then, of getting fire for use was to light sticks of wood at a flame kindled by nature—by a volcano, perhaps, or by a stroke of lightning. These firebrands were carried to the home and used in kindling the fires there. The fire secured in this way was carefully guarded and was kept burning as long as possible. But the flame, however faithfully watched, would sometimes be extinguished. A sudden gust of wind or a sudden shower would put it out. Then a new firebrand would have to be secured, and this often meant a long journey and a deal of trouble.

In 1827, John Walker, a druggist in a small English town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. The druggist had discovered the first friction-chemical match, the kind we use to-day. It is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. Although Walker's match did not require the bottle of acid, nevertheless it was not a good one. It could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. In a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. The match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. It would ignite when rubbed on any dry surface, and there was no longer any sputtering. This was the phosphorus match, the match with which we are so familiar.


What is the main idea of the last paragraph?
A- Early matches were dangerous and awkward.
B- John Walker made the first match.
C - Phosphorus was the key to the modern match.
D - Walker's match was better than what came before.

Answers

Answer:

Explanation:

b because the first sentances talk about it

I think b bc I had this before n school

What is the first step in determining the central idea of an informational text?

identifying who or what the author is writing about
identifying the way the author feels about the topic
stating the information about the topic clearly in one sentence
finding the most important information about the topic in the text

Answers

The first step in determining the central idea of an informational text is to identify who or what the author is writing about.
the answer is c because to determine the central idea you would have to make a sentence that states the info

Can yall give me a paragraph on Heritage in our hands (80-100) words.
Thanks...

Answers

Answer:

Heritage is a intangible commodity in our hands, we the people of the land. World Heritage Day is annually celebrated on 18th April. It tells the importance of ancient historical buildings and their preservations. Across the globe, there are various monuments built in the historical period. For the protection of their infrastructure, World Heritage Day is celebrated. World Heritage means historical, cultural, educational etc

Heritage is the full range of our inherited traditions, monuments, objects, and culture. Most important, it is the range of contemporary activities, meanings, and behaviors that we draw from them.
Heritage includes, but is much more than preserving, excavating, displaying, or restoring a collection of old things. It is both tangible and intangible, in the sense that ideas and memories--of songs, recipes, language, dances, and many other elements of who we are and how we identify ourselves--are as important as historical buildings and archaeological sites.
Heritage is, or should be, the subject of active public reflection, debate, and discussion. What is worth saving? What can we, or should we, forget? What memories can we enjoy, regret, or learn from? Who owns "The Past" and who is entitled to speak for past generations? Active public discussion about material and intangible heritage--of individuals, groups, communities, and nations--is a valuable facet of public life in our multicultural world.
Heritage is a contemporary activity with far-reaching effects. It can be an element of far-sighted urban and regional planning. It can be the platform for political recognition, a medium for intercultural dialogue, a means of ethical reflection, and the potential basis for local economic development. It is simultaneously local and particular, global and shared.

Why doesn't Holden want to/is afraid of growing up? (Catcher in the Rye)

Answers

He is scared of the ultimate duties he will have from being an adult and the regret for what he had done as a kid.
he didn’t want to regret what he has done as a child and he didn’t want to have the responsibility of being an adult

Author's’ word choice depends on all of the following EXCEPT:
A. content
B. audience
C. context
D. ideas

Answers

Answer:

B or D

Explanation:

not for sure....wouldn't really trust it.

A I believe. The Authors would choose words used to benefit the meaning. I don’t think “content” falls under that category. If I’m right, happy to help :)

Apply what you’ve learned to these new excerpts.

From What is a Desert? by Emilia Jackson

Deserts are often described as hot and dry, but only one of those is true all the time. There are hot deserts, but cold deserts exist as well. Some areas, such as parts of Greenland, can have winter temperatures as cold as –2 degrees Celsius! Deserts are defined as areas with very little rain and snow—less than 26 centimeters per year, on average. Although there is usually very little water available in deserts, many plant and animal species make these areas their home.

From Desert Adaptations by Diallo Abara

It may seem surprising that plants and animals can live in the desert. After all, plants and animals need water to survive, and the very definition of a desert is that it is a place with hardly any water. In addition, many deserts are extremely hot during the day. How do plants and animals survive in this harsh climate?

Both plants and animals have adaptations—either behaviors or parts of their bodies—that help them to live in the desert. For example, fennec foxes have large ears that allow heat to leave their bodies more easily. Camels store fat in their humps, which their bodies break down into food and water when those provisions are unavailable. Many small desert animals stay out of the hot sun during the day and come out to eat at night.

How is Jackson’s purpose different from Abara’s purpose?

Jackson provides information about desert climate, while Abara explains how animals can live in the desert.

Jackson gives details about the areas of the world where deserts are found, while Abara explains what a desert is.

Jackson explains how much precipitation falls in a desert, while Abara relates what animals need to survive.

Jackson describes winter desert temperatures, while Abara explains how daytime and nighttime temperatures differ.

Answers

Answer:

A desert is dry, but its not always dry. Water is stored in different plants and there can be cold deserts as well.

A desert is dry but not always dry!!!!! Good luck

Pretend that you are at the park babysitting. There are dozens of children playing on the playground. Use 3 onomatopoeias to describe the scene.

Answers

Answer:

Boing, Woosh, Hehe

Explanation:

Boing - Kids jumping on things

Woosh - the wind making noise as kids run by

Hehe - kids laughing

Answer:

Below!

Explanation:

I'm at the park, taking care of Mrs.Parker's kids this afternoon. I'm being paid 13 dollars an hour! It's a hot day, so occasionally I'll hear a "splash!" of a water balloon or a "pop!" of a blow-up beachball. Kids on their scooters ride by me, "zoom!", and that breeze they make is refreshing!

Read the excerpts from "Freedom Walkers” by Russell Freedman.

Excerpt 1

Shaken and alarmed, Robinson bolted to her feet and stumbled off the bus in tears, packages falling from her arms. She had made the mistake of sitting in one of the front ten seats, which were reserved for white riders only.

"I felt like a dog,” she wrote later. "And I got mad, after this was over, and I realized I was a human being, and just as intelligent and far more [educationally] trained then that bus driver was. But I think he wanted to hurt me, and he did. . . . I cried all the way to Cleveland.”

Excerpt 2

"I didn’t know what was happening,” she [Claudette Colvin] said later. "I was just angry. Like a teenager might be, I was downright angry. It felt like I was helpless.” She remained locked up at the city jail until she was bailed out later that day by the pastor of her church.

Which sentence best explains how these excerpts develop the central idea that the treatment of Black riders was emotionally harmful?

Both excerpts use the words of those affected to help support the idea.
Both excerpts use the evidence of eyewitnesses to demonstrate the idea.
Both excerpts show that Black people were sent to jail for sitting in the wrong seat.
Both excerpts show that bus drivers did not respect the education of Black people.

Answers

Both excerpts use the words of those affected to help support the idea!
Both of the excerpts use words of those affected to help support the idea
The first one:)





Can Someone Please Check This Question And Tell Me If I’m correct and if not then please explain

Answers

Answer: I think 1 or 2

Explanation: 1 because a large number of just doesn't sound right and its to long but if you use many it sounds right and isn't long.  

Maybe 2 because at that point in time just sounds weird and doesn't because its most likely talking about what's happened after so you would chose then but I think its 1 but if not    

2

I think you answered it perfectly

the part of speech that adds to or changes a noun is called a(n) ___.
A. adverb
B. preposition
C. adjective
D. verb

Answers

Answer:

C) Adjective

Explanation:

An adjective modifies or describes a noun or a pronoun. An adjective can be used to modify or describe a noun or a pronoun. If you're unsure of which one or how many, this is a good place to start.

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A) Adjective

According to Oxford Languages: a word or phrase naming an attribute, added to or grammatically related to a noun to modify or describe it.

The first step in her downward course was in her ceasing to instruct me. She now commenced to practice her husband's precepts. She finally became even more violent in her opposition than her husband himself. She was not satisfied with simply doing as well as he had commanded; she seemed anxious to do better. Nothing seemed to make her more angry than to see me with a newspaper. She seemed to think that here lay the danger. I have had her rush at me with a face made all up of fury, and snatch from me a newspaper, in a manner that fully revealed her apprehension. She was an apt woman; and a little experience soon demonstrated, to her satisfaction, that education and slavery were incompatible with each other

Based on this passage, and what you know of Douglass's viewpoint, what message does Douglas want to convey?
it says to write a small paragraph

Answers

The viewpoint of Douglass is that education and slavery were incompatible with each other.

What is viewpoint?

It should be noted that viewpoint simply means the perspective of an author regarding a literary work.

In this case, the viewpoint of Douglass is that education and slavery were incompatible with each other.

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Chris finds the poacher’s cabin and the snakes.



--

Chris learns that God never makes mistakes.



--

The plane crashes and Chris cannot find Tim.



--

Tim reveals that Tom Crockett is the quisling.



--

Chris meets Tim.



--

Tim gains Chris’s trust.



--CHOICES--

-introduction

-inciting incident

-denouement

-falling action

-rising action

-crisis

ill be giving brainliest

Answers

Answer:

Falling action?

Explanation:

Chris finds —- incident
Chris learns - denouement
The plane crashes - crisis
Tim reveals - rising action
Chris meets - introduction
Tim gains - falling action

Describe in detail what your favorite color is. Explain why it is your favorite. Describe some things that are that color.

Answers

My favorite color is pink because it is beautiful. Pink complements many colors, including my skin tone. My favorite childhood items are pink. For example, the toy box that i had for many years.
My favorite color is brown. It’s my favorite because of how subtle and beautiful the color is. Not only is it the color of excellence it’s my eye color which makes it special to me.

Read the excerpt from "Freedom Walkers” by Russell Freedman.

E. D. Nixon and other black leaders wanted to take the entire bus segregation issue into federal court. They hoped to demonstrate that segregated buses were illegal under the U.S. Constitution. But first they needed the strongest possible case—the arrest of a black rider who was above reproach, a person of unassailable character and reputation who could withstand the closest scrutiny.

What is the most important information given about the Black leaders in this paragraph?

They wanted to bring the issue of segregation to court.
They wanted to bring the strongest case to court.
They wanted to prove that segregated buses were illegal.
They wanted to ask the arrested rider more questions.

Answers

Answer: They wanted to prove that segregated buses were illegal.

Explanation: They want to bring it to court but they need the arrest of black rider so they have something to say that is illegal they shouldn't get arrested for something like that and that its illegal.

They wanted to bring the isssue of segregation to the court and it states that they wanted to bring the strongest case to court and they wanted to prove to the people that segregated buses was very illegal so I think the boycotted

Please help me. I just need something quick that will help me understand and answer the question.

Answers

Tone, order of events, time

Answer:

The question is about the things you must include in your speech e.g. you should not sway of the topic of the speech.

Hope it helps! If you're still stuck you can ask again!

Read the excerpts from "Freedom Walkers” by Russell Freedman.

Excerpt 1

By now, it was late Thursday evening. Nixon and the Durrs left and went home. Attorney Fred Gray, meanwhile, had learned about Parks’s arrest, had spoken with Rosa, and agreed to represent her. Then he called Jo Ann Robinson, whom he knew from the Claudette Colvin case, and Robinson, in turn, notified several fellow teachers who were members of the Women’s Political Council. "It was all happening quickly,” Gray recalled. "The mood was electric. This was the beginning of the Montgomery Bus Boycott.”

Excerpt 2

While the women were working, Robinson called Nixon at home to inform him of their plans for a boycott. He too had been busy throughout the night, phoning Montgomery’s black ministers and other civic leaders, urging them to attend a meeting Friday evening to mobilize support for both the boycott and for the legal defense of Rosa Parks.

Which sentence best explains how these excerpts develop the central idea that people were eager to help?

Both excerpts give examples that show the level of the participants’ involvement.
Both excerpts reveal the thoughts of the people involved in organizing the boycott.
Both excerpts name the organizations that became involved in the boycott.
Both excerpts provide direct quotes from some of the original organizers.

Answers

The answer is B. Both excerpts reveal the thoughts of the people involved in organizing the boycott.

Both excerpts reveal the thoughts of the people involved in organizing the boycott in the sentence best explains how these excerpts develop the central idea that people were eager to help. Thus, option (b) is correct.

What is sentence?

The term sentence is to define the proper meaning of, to clarify. The sentence is the completeness of to clarify the proper meaning. The grammatical arranged to the represent are the writing style. The language was to convey to the thoughts, ideas, and the share the preferences.

According to the sentence, the people participating in organizing the boycott were to reflect the core principle of the text. Robinson telephoned Nixon at residence to warn him of their boycott preparations. Organize support for both the boycotting and Rosa Parks' legal defense.

As a result, both excerpts reveal the thoughts of the people involved in organizing the boycott. Therefore, option (b) is correct.

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What are key details in an informational text?

the most important ideas in the text
information that tells when things are happening
ideas that the author most wants readers to know
pieces of information that directly support the central idea

Answers

Ideas the author most wants readers to know
I could be wrong but I think the answer is: D) Pieces of information that directly support the central idea.

Please help me will give Brainliest

Answers

The answer is A. She is making a claim that is still arguable but a stated fact.
I’m sorry I’m late! The answer would be A because she’s making a “claim” backed up with three reasons.

Type a short, funny story using invented words for as many things as you can.

Pretend you are in a world that has animals, birds, trees, useful tools, and people that have never been seen before. You are to invent names for all of them.

Answers

Answer: Once upon a time, there was a wrench bird that housed on a metal tree. The tree was annoyed by the bird after it pooped white balls that hatch into microbirds that were new to the world that were very noisy with their chreep chreep sound. The tree decided to shake to dance to pitch the bird to the house of a human named Smiley. Smiley saw that the bird was sad that had no house to live in so he decided to adopt the bird and its babies. The bird lived cheerly and so did babies. THE END!

Answer:

Explanation:

i went to a house in the woods owned by a bird and a lion. they feed me human soup and then. i looked down and saw i was a TIGGER!! i was scared but the soup was very very delicious it was 10 out of 10

What are the punning words in the sentence "An elephant's opinion carries a lot of weight?"

Answers

The punning words are “opinion Carries a lot of weight” because an opinion can not physically carry weight

As the title of the discussion suggests, this part of the capstone is completely dedicated to providing a TECHNICAL analysis of the song.
Do a search for "literary devices" and see what you find, but you are looking for things like rhyme scheme, internal rhyme, external rhyme, personification, metaphor, simile, etc
Your technical analysis must comment on every line of the song and must discuss 5 Literary Devices
The song the bigger picture or tupac changes make sure you do the whole song and every line that makes senes has a Literary Devices with a expiation

Answers

Explanation:

you should right a song about devices examples electronic devices

Some literary devices that can be used to analyze a song are:

ImageryAllusionEuphemismMetaphorPersonification, etc

What is a Literary Device?

This refers to the use of words to give a description a deeper meaning that helps to enrichen a text.

Euphemism can be used to analyze a song because it would make use of mild words to reduce the impact of an unfortunate situation in a song and this would show the meaning of a line in a song.

Hence, we can see that your question is incomplete because you did NOT include the song, so a general overview of literary devices was given.


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What are the punning words in the sentence "An elephant's opinion carries a lot of weight?"

Answers

Answer:

Explanation:

an elephant opinion carries a lot of weight.It is because an elephant is considered to be animal who has heavy weight and people think it in a way that due to elephant heavy weight it carries lot of weight through opinion.

An elephant weighs a lot so the punning words are carries a lot of weight.

Readers draw conclusions from a text when they ?

Answers

Answer:

Drawing conclusions is using information that is implied or inferred to make meaning out of what is not clearly stated. Writers give readers hints or clues that help them read between the lines, since not everything is explicitly stated or spelled out all the time. When readers make an inference or draw a conclusion, they try understand by using clues from the text and what they know from previous experiences. The conclusion is reached after thinking about details and facts. Thoughtful readers synthesize and evaluate information based on prior knowledge.

Explanation:

Readers draw conclusions from the text based on what the book either foreshadows or from information given to them throughout the book. Readers draw conclusions when they can give an explanation to an event that might not of been explained clearly.

Ex: “I went to the grocery store” the reader can draw the conclusion that I bought groceries even though it wasn’t clearly started.

What is historical context?
A. Stories that talk about history.
B. Novels that are important for history.
C. Historical fiction
D. The political, social, cultural, and economic conditions that produce a specific event or idea.

Answers

D that is because it is the information about a period, the place, and the event taht created, influenced, and formed the background to historical records
d. the political, social ,cultural,and economic conditions that produce a specific event or idea

Informational texts uses what type of organization?

A. Intro paragraph, body paragraphs, conclusion paragraph

B. Intro paragraph and body paragraphs

C. Intro paragraph and conclusion paragraph

D. Body paragraphs only


help please last question!!

Answers

Answer:

A

Explanation:

It's organization is in paragraph

Into paragraph and body paragraph is right

STORIES OF USEFUL INVENTIONS, excerpt
By S. E. Forman

1911

THE MATCH

There never was a time when the world was without fire, but there was a time when men did not know how to kindle fire; and after they learned how to kindle one, it was a long, long time before they learned how to kindle one easily. In these days we can kindle a fire without any trouble, because we can easily get a match; but we must remember that the match is one of the most wonderful things in the world, and that it took men thousands of years to learn how to make one. Let us learn the history of this familiar little object, the match.

Fire was first given to man by nature itself. When a forest is set on fire by cinders from a neighboring volcano, or when a tree is set ablaze by a thunderbolt, we may say that nature strikes a match. In the early history of the world, nature had to kindle all the fires, for man by his own effort was unable to produce a spark. The first method, then, of getting fire for use was to light sticks of wood at a flame kindled by nature—by a volcano, perhaps, or by a stroke of lightning. These firebrands were carried to the home and used in kindling the fires there. The fire secured in this way was carefully guarded and was kept burning as long as possible. But the flame, however faithfully watched, would sometimes be extinguished. A sudden gust of wind or a sudden shower would put it out. Then a new firebrand would have to be secured, and this often meant a long journey and a deal of trouble.

In 1827, John Walker, a druggist in a small English town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. The druggist had discovered the first friction-chemical match, the kind we use to-day. It is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. Although Walker's match did not require the bottle of acid, nevertheless it was not a good one. It could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. In a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. The match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. It would ignite when rubbed on any dry surface, and there was no longer any sputtering. This was the phosphorus match, the match with which we are so familiar.

Read the first sentence of the text:

There never was a time when the world was without fire, but there was a time when men did not know how to kindle fire; and after they learned how to kindle one, it was a long, long time before they learned how to kindle one easily.


What is the main purpose of this sentence in the essay?
A, To describe the misery of early human existence
B, To explain how early fires were started
C, To suggest humans have an easier life than we once did
D, To support the idea that matches really changed human life

Answers

Explanation:

D to support the idea that matches really changed human life

answer is D
to support the idea that matches really changed human life

What is the central idea of an informational text?

the most important idea in the text
the examples the author uses
the way the author feels about the topic
the reason the author wrote the text

Answers

Answer:

the central idea of an informative passage is the passage is all about stated in both sentence in past you may have collected this the main Idea Central areas are most institutional ideas to help you extend death and informative text

The central idea is the most important idea in the text. I'm 99% sure
Other Questions
Based on the article, which of the following accurately describes the economic situation in Japan? For many years, Japan has been experiencing a moderate deflation associated with slow economic growth, rising unemployment, and problems in the financial sector. O Japan has never experienced deflation. O Deflation in Japan is so severe that the Japanese government and central bank have run out of ammunition to fight it. O The Japanese government and central bank quickly resolved the deflationary situation by implementing successful monetary and fiscal policies. A new tannery opens in town. Although the tannery brings many new jobs, it is also dumping waste into the river. What shortcoming of GDP measurement does this reflect? GDP ignores income distribution.Environmental degradation is not counted. The shadow economy is missing. Nonmarket activities are excluded. Table 13-15Labor Output MarginalProduct VariableCost FixedCost0 0 -- $0 $51 100 100 $5 $52 250 $10 $53 350 $15 $54 50 $20 $55 25 $25 $56 430 $30 $55. Refer to Table 13-15. What is the marginal product of the second worker?1506. Refer to Table 13-15. What is the total output of five workers?7. Refer to Table 13-15. What is the marginal product of the sixth worker?8. Refer to Table 13-15. What is the average total cost of producing 425 units of output?9. Refer to Table 13-15. What is the average variable cost of producing 400 units of output?10. Refer to Table 13-15. What is the average fixed cost of producing 430 units of output? "The diffusion coefficient D for Al in Al2O3 is 7.48 X 10^-23 m^2/s at 1000C and is 2.48 X 10^-14 m^2/s at 1500C. Calculate the activation energy for this diffusion process." The linking number (Lk) of a closed-circular, double-stranded DNA molecule is changed by: a. breaking a strand, b. unwinding or rewinding the DNA, c. then rejoining it. which view of global business suggests that the success and failure of firms are largely determined by their environments? Use a power series to approximate the value of the integral with an error of less than0.0001. (Round your answer to five decimal places.)I=x ln(x+1)dx. a theoretical perspective in which different abilities, characteristics, type of cognitive processes, and so forth are theorized to be represented in separate components in memory. What military developments supported the growth of imperialism?submarines and airplanesnew technology and the mass production of weaponscreative new strategies and tacticsthe opening of military leadership to people from conquered nations As compared to individual therapy, group therapy is ___________________.-more likely to provide social support to clients -less expensive to provide-at least as effective-All of the these. Given the following empty-stack PDA with start state 0 and starting stack symbol X. (0, a, X, push(x), 0)(0, b, X, pop, 1)(1, b, X, pop, 1). Transform the PDA to a context-free grammar by using the algorithm in the text. Firstly, list all the productions generated by the algorithm. Then, simplify the resulting grammar. strong acids and bases completely dissociate in water. use the table in the introduction to classify the following chemical compounds as strong acids, weak acids, strong bases, and weak bases. The bond dissociation energy of the OO bond is 495 kJ/mol. Which for which of the reactions shown below is AH 495 kJ/ mol? 0_0 . : 0 : Using the average bond energies from your textbook (Table 8.5), what is the approximate change in enthalpy for the following unbalanced reaction? H-C=C-H(g) + O2(g) CO2(g) + H2O(g) An= 777 kJ + KJ Using the average bond energies from your textbook (Table 8.5), estimate the enthalpy of formation for nitric acid (HNO.). KJ The Lewis symbol of a selenium atom has unpaired electrons and 2 paired electrons. Answer with integers (e.g. 2). unpaired electrons and The Lewis symbol of the selenide ion has paired electrons. Answer with integers (eg. 2). unpaired electrons and The Lewis symbol of the iron(III) ion has paired electrons. Answer with integers (e.g. 2). hardy and weinberg imagined that all of the alleles for all the loci in a population in each generation were present in a single group called the Let C be the boundary-curve of a 5 x 3 rectangle in the sy-plane, equipped with the counterclockwise orientation. Let F(x,y) = (2y - en *)i +9aj. Use Green's theorem to compute fF.dr. you put a mass of 400 g on string. string is 50 cm long and weights 12.5 g what distance between advacent nodes you pexpect for a frequency of 100 hz 4. Which one is an imperative sentence?a) Tell him that you like him.c) Where were you last night?chopb) I have to clean my room.d) We won the game! Please hurry!!! (I JUST NEED THE DATA DRAWINGS AND THE DIAGRAM DRAWINGS)Model a low-gradient, low-velocity stream. Read the scenario. You are on a research trip to observe pronghorn in the prairie grasslands of Colorado. As you observe a herd grazing next to a nearby stream, you notice storm clouds moving in overhead and feel rain beginning to fall. How does the stream act right now upon the objects in it?Analyze the scenario and characterize the slope of the stream, the amount of rainfall, and the terrain of the area. If all your descriptions are correct, proceed to step f. If your descriptions are not all correct, analyze the scenario again and correct your descriptions. Click on the "Check" button. Do this step until all descriptions are correct. Then proceed to step f. Observe what happens to the sand and pebbles in the stream. When ready, press the "Pause" button and write your observations in the space below Low-Gradient, Low-Velocity Stream in the Data section of this guide. Draw what you see in Table A. Proceed to the next activity. Model a low-gradient, high-velocity stream. Read the scenario. As you continue to observe the pronghorn herd, the rainfall gradually increases until it is falling at a steady pace, causing the stream to flow more quickly. How does the stream act right now upon the objects in it?Analyze the scenario and characterize the slope of the stream, the amount of rainfall, and the terrain of the area. If all your descriptions are correct, proceed to step f. Observe what happens to the sand and pebbles in the stream. Compare the erosion of sediment in this scenario and the erosion of sediment in the Low-Gradient, Low-Velocity Stream scenario. When ready, press the "Pause" button and write your observations in the space below Low-Gradient, High-Velocity Stream in the Data section of this guide. Draw what you see in Table B in the Data section of this guide. Proceed to the next activity. Model a high-gradient, low-velocity stream. Read the scenario. You make a second research trip to observe pronghorn in the Colorado Rockies. You are next to a steadily flowing river, observing a local herd, when you start to feel raindrops fall from overhead. How does the river act right now upon the objects in it?Analyze the scenario and characterize the slope of the stream, the amount of rainfall, and the terrain of the area. If all your descriptions are correct, proceed to step f. Observe what happens to the sand, pebbles, and rocks in the stream. Compare the erosion of sediment in this scenario and the erosion of sediment in the Low-Gradient, Low-Velocity Stream scenario. write your observations in the space below High-Gradient, Low-Velocity Stream in the Data section of this guide. Draw what you see in Table in the Data section of this guide. Model a high-gradient, high-velocity stream. Read the scenario. As you continue to observe the pronghorn herd, the storm overhead gradually grows and the rainfall becomes a steady flow, increasing the speed of the river. How does the river act right now upon the objects in it?Analyze the scenario and characterize the slope of the stream, the amount of rainfall, and the terrain of the area. On the left panel, choose the description for each parameter that would correctly model the scenario. If all your descriptions are correct, proceed to step f. Observe what happens to the sand, pebbles, and rocks in the stream. Compare the erosion of sediment in this scenario and the erosion of sediment in the High-Gradient, Low-Velocity Stream scenario. Draw what you see in Table D in the Data section of this guide. Model a low-gradient, high-volume stream. Read the scenario. You make a third and final research trip to observe pronghorn in the flatlands. While making your observations, you are caught in a downpour. You hurry away from the nearby river to seek shelter. What will happen to the flow of water in the river, and how will the river act upon the objects in it? Analyze the scenario and characterize the slope of the stream, the amount of rainfall, and the terrain of the area. On the left panel, choose the description for each parameter that would correctly model the scenario. If all your descriptions are correct, proceed to step f. If your descriptions are not all correct, analyze the scenario again and correct your descriptions. Click on the "Check" button. Do this step until all descriptions are correct. Then proceed to step f. Observe what happens to the sand, pebbles, and rocks in the stream. Compare the erosion of sediment in this scenario and the erosion of sediment in the Low-Gradient, Low-Velocity Stream scenario. Draw what you see in Table E in the Data section of this guide what is the lighting demand load (before derating) for a house with outside dimensions of 30 ft x 48 ft on the first floor and 22 ft x 42 ft on the second floor During American ImperialismWhat were the major arguments in favor of adopting a policy of expansion?