The Hydrosphere

A rain shaft pierces a tropical sunset as seen
from Man-of-War Bay, Tobago, Caribbean Sea . Most of the water
evaporated from the ocean is directly returned by precipitation.
Courtesy NOAA

Water is a critical element that sustains life and drives a variety of environmental processes acting within the Earth system. In this chapter we'll explore how water is cycled through and its impact on the Earth system. 

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