Chemistry Middle School

Science question! Please read the article and give 2 new facts (not about continental drift please)! Please do this and you get 20 points!

Answers

Answer 1

Answer:

1. Scientists can determine the age of the seafloor through rock samples.

2. An isochron is an imaginary line on a map that shows points that have the same age.

Explanation:

Answer 2

They can see where the earth was connected

Related Questions

Make a claim about whether or not a piece of pottery is an example of a fossil? Summarize evidence to support your claim and explain your reasoning.

Answers

Answer:

A piece of pottery is deemed NOT a fossil because fossils are the remnants of a once living thing,a piece of pottery is a historic item,a relitivitely old item.

pottery is more of something made and a fossil is something that’s already converting into a solid that happens naturally unlike pottery.

When DNA replicates, the genes in the new strand are the orginal strand.
a. similar to
b. larger than
c. different from
d. identical to

Answers

I think The answer is A

The answer is A similar to

HURRY PLEASE

What forces act upon a maglev train? Select the THREE (3) that apply.

air resistance
air resistance

friction with the ground/track
friction with the ground/track

magnetic fields that attract and repel
magnetic fields that attract and repel

gravity
gravity

applied forces from other vehicles

Answers

magnetic fields that attract and repel, gravity, and friction with the ground/track are the forces that act upon a meglev train. a maglev train is a train that is propelled by magnets on both the train and the tracks. gravity plus friction plus magnetic fields equals a maglev train.

Magnetic fields that attract and repel, gravity, and friction with the ground/track are the forces that act upon a meglev train.

What is maglev train?

A maglev train is a train that is propelled by the effect of magnets on both the train and the tracks.

Force that act upon maglev trainGravityFriction Magnetic fields

Thus, we can conclude that, magnetic fields that attract and repel, gravity, and friction with the ground/track are the forces that act upon a meglev train.

Learn more about maglev train here: https://brainly.com/question/16196328

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Which of the following is NOT a way of making heat?
A. turning on an electric light
B. eating a sandwich
C. rubbing sticks together
D. melting an ice cube

Answers

If this is serious the answer is B....

Answer:

b. You should prolly know this tho lol

Explanation:

Describe the concentration of hydronium ions and hydroxide ions when a base is added slowly to a white vinegar solution. The pH of white vinegar is 3.1. Explain

Answers

Answer:as you add the base it added some PH. The Ph lever of white winegaer is2.4 - 3.4

Explanation:

In addition to carbon dioxide, what other two ingredients does a plant need for photosynthesis? ( A: water and sunlight B: Sunlight and soil C: sunlight and oxygen D: water and oxygen)

Answers

In addition to carbon dioxide, water and sunlight are the two ingredients that a plant need for photosynthesis. Therefore, the correct option is option A.

What is photosynthesis?

Green plants along with certain other organisms convert sunlight into chemical energy through a process called photosynthesis. Light energy is gathered and utilised during photosynthesis by green plants to change moisture, carbon dioxide, plus minerals into oxygen- and energy-rich organic molecules.

It is impossible to overstate the role that photosynthesis plays in sustaining life on Earth. There'd soon be food or even other organic materials on Earth if photosynthesis stopped. The majority of life would vanish, and eventually, the atmosphere of Earth would contain almost no gaseous oxygen. In addition to carbon dioxide, water and sunlight are the two ingredients that a plant need for photosynthesis.

Therefore, the correct option is option A.

To know more about photosynthesis, here:

https://brainly.com/question/29775046

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The distance time graphs for two objects are shown below: look at the picture. Which statement is true? Both objects move at variable speeds. Both objects move at a constant speed. Object A is moving at constant speed but Object B is moving at variable speed. Object A is moving at variable speed but Object B is moving at constant speed.

Can you get this done before 10:40 pls

Answers

Answer:

The last statement is correct

Explanation:

Solar: converts mechanical energy of _____________ into electricity.
Wind
The Sun
Water

Answers

The sun.
Solar energy uses the suns power to create electricity

The sun :):):):):):):)

What is the main function of messenger RNA?
a. it adds amino acids to a growing protein chain
b. it carries the information neccesary for protein synthesis
c. it carries the information neccesary for dna replication
d. it carries information that causes deletions and other mutations

Answers

The right answer is C

Messenger RNA (mRNA) carries the genetic information copied from DNA in the form of a series of three-base code “words,” each of which specifies a particular amino acid. 2. Transfer RNA (tRNA) is the key to deciphering the code words in mRNA.

Answer:

it carries the information neccesary for dna replication

Explain how you could use the solubility of a substance to make a saturated solution.

Answers

Answer:

Add solute to liquid until dissolving stops.

Evaporate a solvent from a solution until the solute begins to crystallize or precipitate.

Add seed crystals to a solution that is supersaturated.

Explanation:

PLEASE HELP!!!!!!!! giving brainlist

Answers

Answer:

I can only give the answer for the first page.

Explanation:

1. Thermal energy always moves from hot objects to cold objects.

2. When two states of matter reach the same temperature, it is called thermal equilibrium.

hot to cold thermal radiation

What happens to salt water and fresh water when you try to mix them.

Answers

Answer:

the lighter fresh water rises up and over the salt water

Explanation:

this is because the salt water is denser

Answer:

When trying to mix fresh/salt water it leads to variable and dynamic chemical conditions, especially salinity because fresh water flowing into the estuary is less salty and less dense than water from the ocean, it often floats on top of the heavier seawater.

Explanation:

ecosystems!!!!!!!! 3 questions PLEASE ANSWER I NEED THEM BY FRIDAY

1. What would happen if there were no abiotic factors in an ecosystem?

Plants would be unable to grow and produce oxygen for the animals.

Animals would grow and flourish.

The ecosystem would get too much rain.

2.Bacteria would become the consumer instead of the decomposer.
Which of the following correctly shows the cycle of biotic factors in an ecosystem?

A. Bacteria produce food and oxygen; animals eat the plants, breathe the oxygen, and produce carbon dioxide; and plants break down dead animals and produce minerals.

B. Plants produce food and oxygen; bacteria eat the plants, breathe the oxygen, and produce carbon dioxide; and animals break down dead plants and produce minerals that help plants grow.

C. Plants produce food and oxygen; animals eat the plants, breathe the oxygen, and produce carbon dioxide; and bacteria break down dead plants and animals and produce minerals that help plants grow.

D. Animals produce food and oxygen; bacteria eat the plants, breathe the oxygen, and produce carbon dioxide; and plants break down dead animals and produce minerals.

3. the pictures

Answers

Answer:

For your first question, the answer is "Plants would be unable to grow and produce oxygen for the animals"

Explanation:

Q1) Plants would be unable to grow and produce oxygen for the animals.

Q2) C

and I don't understand Q3. Sorry :(

1.Which of the following is an example of a non-renewable resource?
A.Wind
B.Solar (Sun)
C.Trees
d.petroleum

2.Burning fossil fuels releases which gas into the air, making the Earth warmer?

A.Oxygen
B.Water
D.Nitrogen
D.Carbon Dioxide

Answers

1. D: Petroleum
2. D: Carbon Dioxide

1 is petroleum. 2 is carbon dioxide

WARNING (It's actually 8th grade science but it's not on here...)

The periodic table is organized into groups and periods of elements. The characteristics of a certain group of elements are listed below. Which of these elements is in this group?

Characteristics of a group of elements
•It's shiny
•It's a solid at room temperature
• It has atoms with 2 valence electrons

Answer Choices
A. Lithium
B. Strontium
C. Aluminum
D. Silicon

Answers

I think is C,,,,,,,,,,,,,,

Explain how you could use the solubility of a substance to make a saturated solution.

Answers

A saturated solution is prepared by continuously adding solute to the solution until a stage is reached where the solute appears as a solid precipitate or as crystals to form a highly saturated solution. Consider the process of adding table sugar to a container of water.

A disease caused by the inflammation of mucus membranes inside the bronchial tubes. There are more than 3 million U.S. cases a year.

Answers

Inflammation can have causes that aren't due to underlying disease. Examples include injuries such as sprains and strains, overuse, or insect bites.

PLS HELP ME IT IS SUPPOSED TO BE DONE IN 10 MINS PLS In a two paragraph (it can be a 2 sentence paragraph) extended response, summarize the ways in which technological advances and enforcement of safety and environmental laws and regulations are attempting to avoid or reduce the negative effects of finding, producing, and transporting oil.

Answers

Answer:

Environment: They must be supplied and used in ways that have minimal safety and environmental stewardship have advanced safety regulations and practices, promulgated rules for reducing VOC emissions from oil and gas production and ... disposal protocols are similarly reducing negative impacts to air and water.

Explanation:

×!¡! Measurement !¡!×
Record the volume of the liquid in the graduated cylinder.
The volume of the liquid is ______ milliliters.

Answers

53???? that’s my guess

Answer:

53 trust meeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Explanation:

PLEASEEE HELPP MEEE!! I NEED THISS THANK YOUUU <3

Answers

Answer:

Explanation:

Adaption is an animal adapting to be better suited for its enviroment, a bird being able to fly better is an example of that. :)

Answer:

D because all the other ones seem to be disability for the animals and D well the owner could of taught the dog that and the dog adapted to living that aka the owners rules either ways the dog learned it the other ones don't say anything so its D

Tell me why in Louisiana it always gotta freaking have a hurricane

Answers

Why do so many storms target the state? The easterly winds typically blowing across Jacksonville in the summer flow out of the Azores/Bermuda high-pressure system which also steers many hurricanes into the Gulf. In June and October, storms are more likely to move up the Gulf from the south and southwest.

Help plz :<

In a combustion reaction, carbon is used to make reactants burn.

Please select the best answer from the choices provided

T
F

Answers

In a combustion reaction, a substance is oxidized; of course carbon can be oxidized, and the most usual oxidant is dioxygen gas, o2.( Next Time Provide The Options Given )HOPE IT HELPS !!!

true
hope that helps

1. What is the geologic time scale? Explain how the geologic time scale is a model.
2. How many millions of years was the Paleozoic?
3. During what era did the dinosaurs live?
4. During what period where the first early human relatives found?

Answers

1.) the geologic time scale is a system of chronological dating that relates geologic structure to geologic events. it is a model because it measures and describes events and relationships in geologic history.

2.) the paleozoic period was roughly from 245 million years ago to 545 million years ago.

3.) the dinosaurs lived in the mesozoic era, specifically the triassic period, which was roughly around 230 million years ago.

4.) the first early human relatives were found roughly around d the neogene period, about 25 million years ago, and is in the cenozoic era.

This is the answer hope it will help you

Ill give brainliest and a 5 star review for the best answer Do you think your town or neighborhood has an ecosystem? If you don’t think so, explain why not. If you do think so, what are the producers, consumers, and decomposers in the ecosystem? What roles do humans play in this ecosystem?

Answers

Answer:

yes i think it is has an ecosdystem because it has life

Explanation:

1. Land-dwelling creatures depend on the the water cycle to ___________ fresh water from its salt solution in the Earth's oceans to the atmosphere.
2. They also depend on the water cycle to ______________ water from the atmosphere down to the Earth's land.

Word Blank Bank:
Evaporate
Precipitate
Condensate
Infiltrate

Answers

1 is evaporate and 2 is precipitate

#1Evaporate and #2participate

Describe: What happens to a hydrogen atom in an acid when the acid is dissolved in water?

Answers

Answer:

When dissolved in water, acids donate hydrogen ions (H+). Hydrogen ions are hydrogen atoms that have lost an electron and now have just a proton, giving them a positive electrical charge. ... The H+ ions in the acid join with and are neutralized by the OH- ions of the base to form H2O.

Answer:

Explanation:

Which type of mixture looks like it's composed of different substances?
Atomic
Homogenous
Heterogeneous
Ionic

Answers

Answer:

Heterogeneous Mixtures look like it’s composed of different substances.

heterogenous mixture, since the substances are not dispersed evenly, so they’re easier to detect!

Given the following equation: Mg (s) + 2HCl (aq) → MgCl2 (aq) + H2 (g)

If you start with 4.50 grams of Magnesium (Mg), how many grams of Hydrogen gas (H2) will you theoretically produce? If you actually produce 0.25 grams, what is your percent yield?

please help

Answers

25 gram , hope that helps you

The neighborhood swimming pool is 20 feet long, 8 feet wide, and 4 feet deep. Which formula below should be used to find how much water the pool can hold?

Answers

Answer:

The formula to use is

VOLUME=LENGTH×BREADTH×HEIGHT

PLEASE GIVE BRAINLIEST

If humans started burning half as many fossil fuels as we did in 2004, what might the graph look like?

Answers

If human started burning half as many fossil fuel’s as we did in 2004, the graph who have a significantly smaller rise. The Average CO2 concentration (ppm) would be around 340-345 rather than over 375.

Other Questions

define biotic factories and give three examples please answer please please please please please please please please please, please please please please please please please please please please please Giving Brainlist! Everyone in Squidward's family has light blue skin, which is thedominant trait for body color in his hometown of Squid Valley. Hisfamily brags that they are a "purebred line. He recently marrieda nice girl who has light green skin, which is a recessive trait.Create a Punnett square to show the possibilities that would resultif Squidward and his new bride had children. Use B to representthe dominant gene and b to represent the recessive gene.A. List the possible genotypes and phenotypes for theirchildren. Jack spent a mean of $4 in the last 5 days how much did he spend on the 4th day What are the external elements that bring change in Earth's surface Which of the following is an example of one person making a difference? A. John Adams getting elected as president B. John Doe submitting a petition signed by hundreds C. Rosa Parks refusing to give up her seat on the bus The ideology that supported the trend depicted in the map is most similar to the ideology that supported which of the following? Opposition to the international slave tradeB Involvement in the Spanish-American War Participation in the First World WarD Isolationism prior to the Second World War What are the bonds of dna Which type of plate boundary is seen at A?convergentdivergenttransform For each sequence, find the first 4 terms and the 10th term1) 2n-1 & Complete the text with which, when, whereand whose. Use one of the words twice.An unusual relationshipMost people love dogs, but you don't often findorangutans that are in love with them too! However,Suryia the orangutan is the exception. He and his dogfriend, Roscoe, are two animals(1)friendship is unique.Suryia and Roscoe live at the Myrtle Beach Safari,(2)is a 50-acre nature park, in SouthCarolina, USA. In 2008, (3)Suryia wasriding on an elephant with the director of the safari, a lostdog suddenly came out of the woods. Suryia jumped offthe elephant and ran to the dog. They started playingtogether and have been best friends ever since. Nowthey go to the pool in the the park, (4)they swim and play around. Suryia holds Roscoe by thetail and Roscoe pulls him around the water. Suryia takesRoscoe for walks around the park and even gives him hismonkey biscuits.This friendship, (5)is very unusual,has made many people around the world smile. Can someone help me out with this? Put in order the following sentences . 225/25 = ?? hurry please I'm stuck on it What is the best evidence that the speaker's wrath has serve consequences? Choose the sentence that is grammatically correct. Group of answer choices A Jos le gustan los cereales A Jos te gustan los cereales Cereales gustan a Jos A Jose le gusta los cereales Compare 6*10^5 and 3*10^4 help!! will make brailiest What was NOT a belief of the Jim Crow laws?A. Whites are superior in every way.B. interracial marriage will bring down society .C.Treating everyone as you would like to be treated creates an ideal society.D. Violence at all costs to maintain African Americans remaining at the bottom of society HELP ASAP !! ill give you the brainliest answer as long its correct plsss helpp PLEASE HELP!3. Read the following sentence from Romeo and Juliet and answer the question that follows."The earth hath swallowed all my hopes."What type of figurative language is used in this sentence?similemetaphorpersonification Write 10 mature words and their definitions.