Q. The most potent greenhouse gas among the following is __?
Answer: Water Vapor
Notes: The most potent greenhouse gas is water vapour, which causes about 36-70% of the greenhouse effect. Carbon dioxide (9-26%), methane (4- 9%) and Ozone (3-7%) are other major greenhouse gases.

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 2 in 12. Various Topics on Climate Change in above course in App.