Water Cycle

What energy provides the water cycle?



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The Sun heats the earth, causing evaporation of water. When the water is in the clouds and atmospheric conditions become such that the temperature of the clouds drops below the point at which they can support the water vapor, the water condenses into drops or crystals and falls in the form of rain or snow.

That is the water cycle.

The Sun provides the energy, and the heat energy from the Sun is caused by the nuclear reaction that is taking place.