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
jeyben [28]
3 years ago
13

The aurora borealis is caused by the ______.

Biology
2 answers:
pishuonlain [190]3 years ago
7 0
The aurora borealis is caused by the collisions between gaseous particles in the Earth's atmosphere.
castortr0y [4]3 years ago
5 0

The answer is thermosphere

You might be interested in
In comparative anatomy, the flippers of a seal, feet of a sea otter and fins of a dolphin would be considered __ structures.
miv72 [106K]
All of these things would be considered homologous.  Please mark Brainliest!!!
5 0
3 years ago
A client being evaluated in the emergency room is unable to speak logically or follow directions. the client’s family states the
Blababa [14]
<span>A client who is unable to speak logically or follow directions, with the added information from his family that the client has been under a great deal of stress for about 6 months, then more than likely the client is experiencing exhaustion. Exhaustion is a state of extreme physical or mental fatigue.</span>
5 0
3 years ago
what is the ultimate source of energy of almost any terrestial (land) food chsin or food web ? what process converts this energy
jasenka [17]
The sun is the ultimate source of energy and the process is Photosynthesis.
4 0
3 years ago
What are two key characteristics of a good scientific investigation?
Afina-wow [57]
Two key characteristics of a good scientific investigation are hypothesis and observation of whatever organism your studying.
6 0
3 years ago
Which statement accurately describes the function of a hormone produced by the adrenal glands?
stealth61 [152]
<span>The question says,'which statement accurately describe the function of a hormone produced by the adrenal glands? The correct option is C. Cortisol produced by the adrnal gland is called the stress hormone because it coordinates many change that occur in the body in response to stress. This include control of heart rate and blood pressure.</span><span />
8 0
3 years ago
Other questions:
  • Some school districts use gps to<br>​
    12·1 answer
  • Why do ecosystems constantly need new energy
    12·2 answers
  • It is mentioned that energy utilized for exercises comes from the breakdown of ATP (adenosine triphosphate). Please explain the
    7·1 answer
  • Which of the following is an example of homeostasis?
    13·1 answer
  • Energy can exist in many different forms, including those you can detect in a burning fire or in a lit lightbulb. Which of these
    7·2 answers
  • The viscosity of magma depends upon its silica content and its
    8·1 answer
  • PLZ HELP WILL GINE BRAINLIST :(
    12·1 answer
  • Why is a "shell of hydration" important to life?
    13·1 answer
  • Which best describes nitrogen fixiation
    14·1 answer
  • What is the difference between sensory and motor neurons?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!