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Author Question: Atmospheric nitrogen A) is highly reactive. B) owes its existence to the actions of ... (Read 155 times)

newyorker26

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on: Jul 13, 2018
Atmospheric nitrogen
 A) is highly reactive.
  B) owes its existence to the actions of micro-organisms.
  C) stays in the atmosphere for a long time.
  D) was mostly captured from outer space by the Earth's gravitational field.
  E) has a molecular weight that is higher than that of oxygen.

Question 2

The third-most abundant gas in Earth's atmosphere (not including water vapor) is
 A) oxygen.
  B) argon.
  C) nitrogen.
  D) carbon dioxide.
  E) helium.


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pallen55

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Reply #1 on: Jul 13, 2018
Answer to Question 1

C

Answer to Question 2

B


newyorker26

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Reply 2 on: Jul 13, 2018
Excellent

mammy1697

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Reply 3 on: Yesterday
:D TYSM

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