General Awareness Questions

Q.  Which of the following is Not a Greenhouse Gas?

a. Oxygen
b. Methane
c. Nitrous Oxide
d. Carbondioxide

ANSWER: See Answer
A greenhouse gas is a gas in an atmosphere that absorbs and emits radiant energy within the thermal infrared range. This process is the fundamental cause of the greenhouse effect

Carbon dioxide is the main greenhouse gas, found in car exhaust pipes.
Methane and nitrous oxide is another type of greenhouse gas.

Oxygen is the only clean gas out there because we need it to survive. Therefore, the only gas that is not a greenhouse gas is Oxygen.


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