Why Is Water Vapor Not Implicated in Climate Change as Methane

question 17

Multiple Choice

Why is water vapor not implicated in climate change as methane and carbon dioxide are?

• A)Water vapor is not a greenhouse gas.
• B)Carbon dioxide and methane are not just greenhouse gases, they are also toxic to most organisms.
• C)The concentration of water vapor in the atmosphere has remained relatively constant despite changes in human activities.
• D)Water vapor is a liquid, not a gas, so it precipitates out of the atmosphere frequently.

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