Which of the following best describes why water vapor, a greenhouse gas, is not considered a significant contributor to global climate change?


Question: Which of the following best describes why water vapor, a greenhouse gas, is not considered a significant contributor to global climate change?

A). Water vapor is inefficient at absorbing heat and does not absorb much of the infrared spectrum.
B). Water vapour is the most abundant greenhouse gas in the atmosphere, both by weight and volume 
C). Water vapour is the cause of rain.
D). the heat is trapped by water vapour as a greenhouse gas and the temperature stays quite warm.

Answer– C). water vapour is the cause of rain. Water vapour is an effective greenhouse gas, as it does absorb longwave radiation and radiates it back to the surface, thus contributing to warming. But, because of water vapour cloud are formed and due to this the rain occurs. So, despite of water vapour 's abundance in environment , being a greenhouse gas and also carbon dioxide oxide is serving a  low purpose than water vapour  it is not considered as a significant contributor to global climate change.

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