Question

Water vapour is one of the major greenhouse gases that causes global warming.

Is the statement true or false?

• A. True
• B. False

Answer 1

The correct option is A True

Water vapour accounts for the largest percentage of the greenhouse effect, as it is the most abundant greenhouse gas. Between $36\%$ and $66\%$ for clear sky conditions and between $66\%$ and $85\%$ when including clouds, water vapour concentrations fluctuate regionally, but human activity does not directly affect water vapour concentrations except on minor scales, such as near irrigated fields and boilers.