Q173
Green House effect is caused by
A.
Increase in CO2
AnswerB.
Increase in O2
C.
Decrease in O2
D.
Decrease in CO2
Answer: Option A
Solution
Answer: Option A
Solution:
Greenhouse effect, a warming of Earth's surface and troposphere (the lowest layer of the atmosphere) caused by the presence of water vapour, carbon dioxide, methane, and certain other gases in the air. Of those gases, known as greenhouse gases, water vapour has the largest effect.