Author Question: Atmospheric nitrogen A) is highly reactive. B) owes its existence to the actions of ... (Read 158 times)

newyorker26 · **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.