Author Question: Nitrogen is the ________ component of the atmosphere in terms of volume. A) main B) second C) ... (Read 54 times)

lracut11

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Nitrogen is the ________ component of the atmosphere in terms of volume.
 
  A) main
  B) second
  C) third
  D) fourth
  E) fifth

Question 2

Oxygen (O2) is being added to the atmosphere by ________.
 
  A) solar radiation
  B) animal decomposition
  C) meteorites
  D) vegetation
  E) the burning of coal


morganmarie791

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Answer to Question 1

Answer: A

Answer to Question 2

Answer: D



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