1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anna35 [415]
3 years ago
7

The aurora borealis is caused by the _______ which is a part of the thermosphere

Biology
2 answers:
kakasveta [241]3 years ago
4 0
The answer to this question is IONOSPHERE. Ionosphere is part of the Thermosphere. This is part of the atmosphere that is ionized by cosmic and solar radiation wherein many charged ions are present. Therefore, aurora borealis becomes visible. The aurora borealis is created due to the collision between these charged ions. 
kherson [118]3 years ago
4 0

Answer:

Explanation:

You might be interested in
How much genetic information do gametes carry?
Maru [420]
They carry 50%of genetic information
8 0
3 years ago
Read 2 more answers
Answer all 20 and I can give you brainliest
ExtremeBDS [4]

Answer:

1.(D)

2.(D)

3.(C)

4.(B)

5.(B)

6.(C)

7.(B)

8.(D)

9.(A)

10.(africa)

11.(D)

12(B)

13(?)Convergent boundaries

14(C)

15(A0

16(​Sturdy Desks and Tables. The safest place to perform the 'duck, cover, and hold' action is under a sturdy desk or table. ...

Bed or Closet. When you are in bed during an earthquake, stay there. ...

A Room with No Windows. Stay away from glass windows during an earthquake. ...

Door Frame. ...

Outside your Home.

So C?

17(C)

18(D)

19(B or A)

20(B)

Extra credit question

Earth is special because it is an ocean planet. Water covers 70 percent of Earth's surface. Earth's atmosphere is made mostly of nitrogen and has plenty of oxygen for us to breathe.There are multiple reasons for earth to be a special planet. Reasons are as follows

1.Earth is the only planet known where intelligent life exist.

2.It lies in the circumstellar habitable zone (CHZ). CHZ is defined in the image given below.

3. Earth has a unique magnetic field which protects the earth from the harmful solar winds. These solar winds played a role in transforming venus into hell.

4. Earth has Van Allen radiation belts which protects it from cosmic rays.

5. Our large neighbour Jupiter protects is from many comets and asteroids that come from the keiper belt and Oort cloud.

6. Earth's atmosphere is favorable to support life on earth. This atmosphere consists of different gases in adequate amount. If the percentage of gases would differ then life on earth may face serious consequences.

7. Tectonic plates of earth differentiates it from most other planets.

8. Earth has a solid crust unlike the gaseous planets.

9. Earth has been gifted with a medium sized star which release solar winds and protect us from the harmful radiation of outer space.

Brainliest?

Explanation:

5 0
2 years ago
In some protists, genetic information is transferred from one cell to the next. This transfer is called _____.
bearhunter [10]
<span>conjugation
</span><span>
Binary fission is a reproduction process wherein one cell divides asexually into two cells forming two daughter cells. into In binary fission, the chromosome is being replicated in which the resultant prokaryote is exactly the same copy of the parental prokaryote which means to say that there is no chance for genetic diversity. However, prokaryotes can still share or even exchange genes through the mechanisms of  transformation, transduction and conjugation.</span>
8 0
3 years ago
Read 2 more answers
What treatment is being compared to the control in the experiment? what treatment is being compared to the control in the experi
stepan [7]

The correct answer is: the treated glioblastoma cells were cultured in the presence of an inhibitor from umbilical cord stem cells, but the control cells were cultured without the inhibitor.

It has been shown that treatment with injected umbilical cord stem cells has strong therapeutic effects on glioma models. Those cells produce anti-tumour substances, with inhibitory effects.

Control group does not include the treatment in order to observe the treatment.


7 0
3 years ago
Describe how some plants or animal populations survive in the presence of pesticides.
Elanso [62]

Answer:

pesticides are in the form of insecticides,fungicides,herbicides plant growth regulators and so on

Explanation:

Pesticides are lethal to target pests but not to the non-target pests it includes humans as well. The application of pesticides brings gain to the farmers by getting higher yields for better and protected crops. Insecticides act against insects growth, herbicides protects herbs, weeds from its pests, rodenticides protects from rats,avicides protects birds fungicides act against fungi and nematicides act against nematodes. Pesticides are divided according to their types.To protect some plant and animals population which can withstand with pesticides environment.

4 0
3 years ago
Other questions:
  • In the kidneys both useful and wasteful substances are removed from the blood by A. reabsorption. B. excretion. C. filtration. D
    15·1 answer
  • The abnormal protusion of an organ or a part of an organ through the wall of the body cavity that normally contain sit called
    8·1 answer
  • Which of the following is NOT a skill scientists use to learn about the world?
    5·1 answer
  • Describe some ways abiotic factors you would most likely see in a local meadow or pond ​
    15·1 answer
  • What are the waste products of respiration
    14·2 answers
  • Of these, which is NOT a sexually transmitted disease?
    10·1 answer
  • How can alternative rna splicing result in different proteins?
    15·1 answer
  • Which of the fallowing structures is built to protect boats from large breaking waves?
    10·1 answer
  • During a diving expedition, a scuba diver suffered from a buildup of carbon dioxide in her bloodstream. Which two organ systems
    13·1 answer
  • Will the middle one shrink swell or neither and the same with the one on the right
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!