Dams Provide Water for 40 Percent of Irrigated Land, but There

Multiple Choice

Dams provide water for 40 percent of irrigated land, but there are both advantages and disadvantages to dams. Which of the following is an advantage of dam use?

A) loss of water due to evaporation
B) provide electricity for many countries
C) increase in salinity due to evaporation and runoff
D) increase in sediment buildup leads to less available water
E) depletion of river water