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Ch. 2-1
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Vocabulary
A
B
vegetation
plant life in a region
water vapor
water in the form of a gas
water cycle
process by which the earth's water moves from the oceans to the air to the land and back to the oceans
evaporation
process in which water from oceans, lakes, and streams is turned into a gas or vapor
condensation
process in which water vapor changes into a liquid form
precipitation
water that falls to the earth as rain, snow, or sleet
groundwater
water stored in rock layers beneath the earth's surface
aquifer
underground rock layer that stores large amounts of water
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