Bio 121 Campbell Biology Truman College
Bio 121 Campbell Biology Truman College
17th Edition
ISBN: 9781323670637
Author: Urry, Cain
Publisher: PEARSON
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Chapter 55, Problem 9TYU

Level 3: Synthesis/Evaluation

9. DRAW IT (a) Draw a simplified global water cycle showing ocean, land, atmosphere, and runoff from the land to the ocean. Label your drawing with these annual water fluxes:

■ ocean evaporation, 425 km3

■ ocean evaporation that returns to the ocean as precipitation, 385 kin3

■ ocean evaporation that falls as precipitation on land, 40 km3

■ evapotranspiration from plants and soil that falls as precipitation on land, 70km3

■ runoff to the oceans, 40 km3

(b) What is the ratio of ocean evaporation that falls as precipitation on land compared with runoff from land to the oceans? (c) How would this ratio change during an ice age. and why?

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Bio 121 Campbell Biology Truman College

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