________ and ________ account for 99 per cent of the gaseous volume of the troposphere.
A) Hydrogen; carbon dioxide
B) Carbon dioxide; nitrogen
C) Nitrogen; oxygen
D) Oxygen; carbon dioxide

Question

Quizplus · Accepted Answer

Nitrogen and oxygen are the two most abundant gases in the troposphere, making up approximately 78% and 21% of its volume, respectively.

________ and ________ Account for 99 Per Cent of the Gaseous

and Account for 99 Per Cent of the Gaseous