Answer:
What are the answer choices?
Explanation:
carbon.
sry if im wrong.
THX TO EVERBODY WHO HELPED ME PASS TODAY
Answer:
i didnt help but thanks for the points
and good job
Explanation:
help--? im so bad at science ugh
Answer:
a volcano is convergent
Explanation:
Repost:
What is weathering?
PLEASE HELP MEEEEEEEEEEEE
Answer:
i agree what is that hot mess'
Explanation:
the graph represents the decay curve of a radioactive isotope called strontium 90 what is the half life of this isotope
A. 8 years
B. 25
C. 50
D75
The half-life of strontium has been 25 years. Thus, option B is correct.
The half-life has been given as the amount of time required for an element to be reduced to half of its initial concentration. The half-life of the element has been given as:
[tex]A=\AA\;\dfrac{1}{2} ^\dfrac{t}{t1/2}[/tex]
Where, the initial concentration of sample, is given by [tex]\AA[/tex]
The final concentration of the sample is given by, A
The time of the reduction is given by t.
The half-life of the sample has been given by, t1/2
In the given graph, the initial concentration of the sample has been 100 grams. The time at which the concentration has been halved i.e. 50 grams is found after 25 years.
Thus, the half-life of strontium has been 25 years. Thus, option B is correct.
For more information about the half-life, refer to the link:
https://brainly.com/question/24710827
What type of relationship is pollination of flowers?
Tell which type of relationship it is: mutualism, predation, parasitism, competition, or commensalism. Give details on why.
I think that animals pollinating flowers is an example of....
I know this because.
Answer:
yogert flower
Explanation:
dont mind me im not a geat speller
How can a charged balloon attract a wall without any contact?
A) The positive charges of the uncharged wall move to the outside.
B) The wall changes shape and the positive charges move to the inside.
C) The negatively charged balloon repels and moves away from the wall.
D) A positive charge in the balloon attracts the negative charges in the wall.
Giving brainliest for first right answer
Answer:
b.
Explanation:
Which organisms are secondary consumers in a temperate coniferous forest? (Select all that apply.)
moose
lynx
wolf
elk
Answer:
Lynx and wolf
Explanation:
Which organisms are primary consumers in a temperate coniferous forest? (Select all that apply.)
yellow-bellied marmots
weasels
birds
mice
Answer:
birds
Explanation:
also yellow bellied marmots
Sean is using rates of deposition to estimate the age of a sediment deposit in the Great Smoky Mountains National Park in Gatlinburg, Tennessee. If the sediment deposit measures 300 centimeters (approximately 9 feet), how old can he estimate the rock is? Show your work.
Answer:
sry i cant i to dubm need points tho
Explanation:
Which is not one of the benefits of biodiversity?
Economic value
Uniform genetics in a species
Survival of species in the ecosystem
Cultural value
In total honesty I'll say economic value
Answer: Uniform genetics in species
Explanation:5 of the benefits of biodiversity is economic value,ecological life support, cultural value , recreational value, scientific value
A and D are out and c is the same thing as ecological life support.
1a) Three groups of students investigate the reactions of magnesium with two different acids. They label their acids Acid A and Acid B. The concentration of both acids is the same. Their method and results are given below. Which groups results were not repeatable? *
1 point
Captionless Image
Group 1
Group 2
Group 3
Answer:
i dont see the image but from what i see on the question i think its group 2
Explanation:
Strawberry plants can reproduce both sexually and asexually. Strawberry farmers use both kinds of reproduction, depending on the desired outcome. In which of the following situations would a farmer most likely want the strawberry plants to reproduce sexually?
A when developing new varieties of fruit
B when making identical copies of a plant
C when producing fruit that is all the same size
D when growing many new plants from cuttings
Answer:
When developing new varieties of fruit
Explanation:
I TOOK THE ANSWER OFF QUIZIZZ FOR YOU <3
Explain the symbiotic relationship of a coyote that eats a rabbit.
A coyote eating a rabbit is an example of....
I think this because..
A coyote eating a rabbit is an example of predation.
Predation is a form of relationship between two organisms in which one, the predator, kills and feeds on the other, the prey.
Usually, the predator is larger than the prey and can easily overpower it in order to feed.
Thus, a coyote eating a rabbit is an example of predation, granted that the coyote kills the rabbit just before eating it.
More on predation can be found here: https://brainly.com/question/22122240?referrer=searchResults
Please help! Can someone give me answers for 2.08 Graded Assignment: Boiling and Melting Points Exploration for 8th grade science
Here are the questions
(I couldn't make the graph)
1. Looking at the line plots on your graph, describe how boiling point and melting point vary with respect to atomic number.
2. Now look at the segment of the graph between the two data points marked with black squares. Describe how the boiling point and melting point plots behave between these points. Be as specific as possible.
3. On your graph, the data points between the black squares are data for elements with atomic numbers 3 through 9. Locate these elements on your periodic table. What term or description would you use to identify these elements with respect to the periodic table?
4. Now look at the green lines you created by connecting the three boiling point data points and the three melting point data points. For each of these lines, describe any trends you see.
5. Locate the elements on your periodic table that you circled in green on your graph. What term or description would you use to identify these elements with respect to the periodic table?
6. After reviewing your answers to questions 2 and 4 above, would you define boiling point and melting point as a periodic table family trend (vertical groups), period trend (horizontal rows), or neither? Explain your answer.
7. Using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. Explain your answers.
Answer:
Explanation:
Please help! Can someone give me answers for 2.08 Graded Assignment: Boiling and Melting Points Exploration for 8th grade science
Here are the questions
(I couldn't make the graph)
1. Looking at the line plots on your graph, describe how boiling point and melting point vary with respect to atomic number.
2. Now look at the segment of the graph between the two data points marked with black squares. Describe how the boiling point and melting point plots behave between these points. Be as specific as possible.
3. On your graph, the data points between the black squares are data for elements with atomic numbers 3 through 9. Locate these elements on your periodic table. What term or description would you use to identify these elements with respect to the periodic table?
4. Now look at the green lines you created by connecting the three boiling point data points and the three melting point data points. For each of these lines, describe any trends you see.
5. Locate the elements on your periodic table that you circled in green on your graph. What term or description would you use to identify these elements with respect to the periodic table?
6. After reviewing your answers to questions 2 and 4 above, would you define boiling point and melting point as a periodic table family trend (vertical groups), period trend (horizontal rows), or neither? Explain your answer.
7. Using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. Explain your answers.
You observe that the hair on your head stands up when a charged balloon is brought near without touching your head. Based on this observation, you write down the following question and steps to an experiment.
Can two charged objects be attracted to each other without touching?
Step #1: Bring the charged balloon 10 cm from your head.
Step #2: Charge the balloon by rubbing it against a cloth.
Step #3: Record your observation.
Step #4: Bring the charged balloon 5 cm from your head.
Step #5: Record your observation.
What revision could you make to improve the experiment?
Remove the fifth step, you do not need to make multiple observations in an experiment.
Reverse the first two steps so that you charge the balloon before you bring it close to your head.
Reverse the second and third steps so you record your observation before you charge the balloon.
Swap steps two and four, you do not need to charge the balloon until the end of the experiment.
Answer:
You reverse the first and second steps.
Explanation:
The balloon won't do anything until it is charged.
Answer:
Reverse the first two steps so that you charge the balloon before you bring it close to your head.
Explanation:
i just took the test it is correct all credits to the person who answered it before me <3 stay safe
Which of the following is an example of variation?
A)A wolf species that has different lengths of fur
B)A frog that has changed over time to hop faster
C)A lake that has become more clear with new environmental protection
A because B is evalution and C is change
Have a good day
Answer:C
Explanation:
hhhheeelllllllllllllllp;
Which organisms are producers in a temperate coniferous forest? (Select all that apply.)
grasses
evergreen trees
marmots
apple trees
Answer:
evergreen trees and grasses
Explanation:
Answer:
Evergreen Trees and Grasses.
Explanation:
This is the answer because Yellow-Bellied Marmots and Mice cannot eat Marmots, and Non-Carnivorous Birds are Omnivores but do not like to feed on Mammals nor Apple Trees.
I hope this helped!
The diagram shows different forms of thermal energy transfer.
What do the flames below the pot represent?
a
conduction
b
convection
c
insulation
d
radiation
please answer the question
this is a very hard question
hheeeeeeeeeeeeellllllllllllllp
True or false: An atom with 6 protons and 6 neutrons is an isotope. Answer correctly i will give brainliest
Answer:
True
Explanation:
Please tell me if it is wrong!
I would appreciate a brainliest because I need some to get to next rank.
The steps in an investigation between two negatively charged objects are listed below.
Step 1: Rub a cloth on two uncharged balloons to make them negatively charged.
Step 2: Bring the two negatively charged balloons together.
Step 3: Observe the repulsion between the two objects.
Which statement is true?
An object changes its charge when placed near another charged object.
Bringing two positively charged objects close together would result in attraction.
The two balloons do not have to touch for repulsion to be observed.
Two negatively charged objects will attract each other when they touch.
Answer:
The two balloons do not have to touch for repulsion to be observed.
Explanation:
They don’t have to touch for them to repel. Hope this helps! ;)
The two balloons do not have to touch for repulsion to be observed. Repulsion is a force between two or more similar or like charges.
What is repulsion ?Charges that are distinct from one another one positive and one negative will attract one another, but charges that are identical either both positive or both negative will repel one another.
Repulsion is a force between two or more similar or like charges, whereas attraction is a force between two or more different or unlike charges or poles. Two magnets that are in close proximity to one another either attract or repel one another.
A molecule's electronic state in a repulsive state according to quantum mechanics is one for which the potential energy is not at a minimum. Since the potential energy steadily declines with the interatomic distance and the atoms repel one another, this indicates that the state is unstable and unbound.
Thus, option C is correct.
To learn more about repulsion follow the link below;
https://brainly.com/question/19339318
#SPJ2
What’s the answer ?
F. fluorite scratches limestone and gypsum
G. Gypsum scratches talc
H. Limestone scratches talc
J. Calcite scratches gypsum
Answer:
J. Calcite scratches gypsum.
Explanation:
Since limestone and calcite have about the same hardness, either limestone or calcite can be used in the hardness test to identify the softer gypsum.
PLEASE HELP TIMED! Thank u guyssss
Answer:
#P: 15
#N: 16
Mass Number: 30.973762u (You can round it if you want)
Isotope symbol: P
Explanation:
I hope this helps :)
Solid at room temperature. They are used in making computers and electronic devices. Have properties of both metals and nonmetals. Which element in the periodic table is it?
Answers: metaloids
Explanation:
A praying mantis eats a bee.
Tell which type of relationship it is: mutualism, predation, parasitism, competition, or commensalism. Give details on why.
Try for 2 sentences:
I think a praying mantis eating a bee is an example of....
I think this because...
Answer:
I think a praying mantis eating a bee is an example of predation. I think this because the praying mantis stealthily hunts its preys, like the bee, in order to kill eat for food.
Explanation:
"Predation" refers to the killing of another living organism in order to prolong the life of the "predator" (hunter) and to end the reproductive life of the "prey" (the one being consumed). The praying mantis is popularly known for being a deadly predator because it feeds on several insects (as its prey), including the bees. They are said to also feed on wasps, moths, mice, frogs, rodents and even snakes.
It kills the bees in order to consume them so it can prolong its reproductive life. It then stops the reproductive life of the bees. Clearly, the type of relationship here is "predation."
I think a praying mantis eating a bee is an example of predation.
I think this is because the praying mantis which is a predator consume the prey which is the bee most times in a defensive manner.
Predation is a biological relationship in which a predator kills or consume it's prey.
It's occur majorly in canivorous animals that consume flesh or other animals.
The predators consume the prey as food and as a form of defensive means from been attacked by the prey.
In this relationship, energy is transfered from the prey which is the bee to the praying mantis.
Therefore, the relationship that occur between praying mantis and bee is predation.