How does an atmosphere high in carbon dioxide and water vapor affect earth’s temperature?

Question 3 options:

It reflects heat and cools the earth2

It traps heat and forms liquid water


  1. Answer:

    Carbon dioxide molecules provide the initial greenhouse heating needed to maintain water vapor concentrations. When carbon dioxide concentrations drop, Earth cools, some water vapor falls out of the atmosphere, and the greenhouse warming caused by water vapor drops.

    It traps hear and forms liquid water


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