Step-by-step explanation:
Water vapor is also the most important greenhouse gas in theatmosphere. Heat radiated from Earth's surface is absorbed by water vapor molecules in the loweratmosphere. The water vapormolecules, in turn, radiate heat in all directions. This can be produced from the evaporation or boiling of liquid water or from the sublimation of ice. Water vapor is transparent, like most constituents of the atmosphere. Under typical atmospheric conditions, water vapor is continuously generated by evaporation and removed by condensation.