The region of the U.S. that uses the most water for irrigation is

A. the northwestern states (west of the Mississippi River and north of 40°N latitude).
B. the northeastern states (east of the Mississippi River and north of the Ohio River).
C. the southwestern states including southern California (west of the Mississippi River and south of 40°N latitude).
D. the southeastern states (east of the Mississippi River and south of the Ohio River).


Answer: C

Environmental & Atmospheric Sciences

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