Water vapor or water vapour (see spelling differences), also aqueous vapor, is the gas phase of water. It is one state of water within the hydrosphere. Water vapor can be produced from the evaporation or boiling of liquid water or from the sublimation of ice. Unlike other forms of water, water vapor is invisible. Under typical atmospheric conditions, water vapor is continuously generated by evaporation and removed by condensation. It is lighter than air and triggers convection currents that can lead to clouds.
Water vapor is a potent greenhouse gas along with other gases such as carbon dioxide and methane.
Read more about Water Vapor: Water Vapor in Earth's Atmosphere
Famous quotes containing the word water:
“it
was my first doll that water went
into and water came out of much
earlier it was the diaper I wore
and the dirt thereof and my
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—Anne Sexton (1928–1974)