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
Nezavi [6.7K]
3 years ago
15

approximately 2.2 billion years ago which gas was first added in large amounts to earth atmosphere from life forms that evolved

in the oceans
Biology
2 answers:
ipn [44]3 years ago
8 0

Always include the steps and/ or backgroung required to gets to the final answer

noname [10]3 years ago
6 0

Answer:

which is a or b

Explanation:

You might be interested in
The misshapen version of a protein that causes properly folded proteins to misfold is called a ________.
sergij07 [2.7K]
That's called a "prion" :)
3 0
3 years ago
Would a 9-N force applied 2 m from the fulcrum lift the weight explain
Bas_tet [7]
the answer is no. You need the two torques to equal in order to lift something. That is 9 X 2 = lifting torque and 9 X 3 = lifted torque. 

As you can plainly see 18 < 27; so you cannot lift that 9 N weight located 3 meters from the fulcrum.
3 0
3 years ago
What makes up the highest percentage of soil composition?
irakobra [83]

Answer:

D

Explanation:

^

5 0
3 years ago
What us this an example of?
guapka [62]

Answer:

diffusion

Explanation:

i just did it

8 0
3 years ago
Read 2 more answers
What is geothermal energy
STatiana [176]
Hi There! :)
<span>
What is geothermal energy?
</span>
Geothermal energy<span> is the heat from the Earth. </span>
4 0
3 years ago
Other questions:
  • How did fossil<br> fuels form, and how<br> are they obtained<br> and used?
    9·1 answer
  • Please help me with this. I need it be all correct I will appreciate it so much if you help me.
    8·1 answer
  • Which of the following are factors that controls the zonation of plants and animals in the rocky shore? . . a. tide range. b. le
    14·2 answers
  • Define resolution and tissue?​
    6·1 answer
  • Environmental scientists collect air samples so they can test the quality of the air. They start with rigid metal containers tha
    14·1 answer
  • PLEASE HELP!! I WILL MARK BRAINLIEST!! plz ignore the one I choose bc it’s probably wrong
    8·2 answers
  • What does the limnetic, profundal, littoral, and benthic zones have in comman?​
    13·2 answers
  • Need healp plzzzzzzzzzzz
    12·1 answer
  • Which statement best describes the overall function of the human
    10·1 answer
  • What is pasteurization, and how is it used?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!