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Evaporation

the change of liquid water to water vapor

Transpiration

the evaporation of water from the leaves of a plant

Condensation

the change of water vapor to liquid droplets

Precipitation

the falling to earth of any form of water (rain or snow or hail or sleet or mist)

Run-Off

the flow of water over the ground surface rather than soaking into the ground

Accumulation

the gathering of run-off water into a body of water (lake, stream, river, or ocean)

Infiltration

the flow of water from the land surface into the subsurface.

Percolation

the flow of water through soil

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