Rain

Rain

Rain is liquid water in the form of droplets that have condensed from atmospheric water vapor. It falls to the ground as precipitation when it becomes very heavy. Rain is a major component of the water cycle and is responsible for depositing most of the fresh water on the Earth. It provides suitable conditions for many types of ecosystems, as well as water for hydroelectric power plants and crop irrigation.

About Rain

Rain is liquid water in the form of droplets that have condensed from atmospheric water vapor and then precipitatedthat is, become heavy enough to fall under gravity. Rain is a major component of the water cycle and is responsible for depositing most of the fresh water on the planet. It provides suitable conditions for many types of ecosystem, as well as water for hydroelectric power plants and crop irrigation. The major cause of rain production is moisture moving along three-dimensional zones of temperature and moisture contrasts known as weather fronts. If enough moisture and upward motion is present, precipitation falls from convective clouds (those with strong upward vertical motion) such as cumulonimbus (thunder clouds) which can organize into narrow rainbands.

Contributions by Vsmith, JDowning, and Ufwuct.

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