Recycled Water: The Hydrologic Cycle

by: William R. Veal and Robert A. Cohen

If we cannot see the water vapor, how do we know water vapor exists? In this Activity, you will examine the evidence regarding the presence of water vapor in the air and explore how water vapor plays a key role in the formation of clouds and rain.


Type Book ChapterPub Date 9/20/2011Stock # PB298X4_10a

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