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Author Question: What is the importance of the carbon dioxide (CO2 ) cycle? A) It makes the growth of continents ... (Read 45 times)

sc00by25

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on: Jul 27, 2018
What is the importance of the carbon dioxide (CO2 ) cycle?
 
  A) It makes the growth of continents possible.
  B) It allows for an ultraviolet-absorbing stratosphere.
  C) It regulates the carbon dioxide concentration of our atmosphere, keeping temperatures moderate.
  D) It will prevent us from suffering any consequences from global warming.

Question 2

How did molecular oxygen (O2 ) get into Earth's atmosphere?
 
  A) It was released by life through the process of photosynthesis.
  B) It was captured from the solar nebula.
  C) It was outgassed from volcanoes.
  D) It came from chemical reactions with surface rocks.


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Anonymous

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Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

A


sc00by25

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

ricroger

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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