Of the following gases,which is the most important contributor to the Earth's greenhouse effect?
A)water vapor
B)ozone
C)CFCs
D)methane

Question

Quizplus · Accepted Answer

Water vapor is the most important greenhouse gas, contributing about 36-70% of the greenhouse effect. It's abundant and naturally occurring, unlike the other examples given. While the other gases mentioned can also contribute significantly to the greenhouse effect, their overall impact is less than that of water vapor.

Of the Following Gases,which Is the Most Important Contributor to the Earth's