How do man-made water resources such as reserv
问题详情
How do man-made water resources such as reservoirs and lakes affect the water cycle？
A．They increase the danger of flooding in the areas surrounding them.
B．They cause changes in the patterns of rainfall in the immediate area.
C．They provide water sources for agricultural purposes in dry areas.
D．They improve the natural flow of water into the oceans.请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：B
解析："... the building of large dams and reservoirs, can change the amount of water evaporated into the atmosphere and change the location and amount of precipitation on land." Choice A is not correct because pavement increases flooding. Choice C is not correct because it refers to the purpose of the man-made water sources, not to their effect on the water cycle. Choice D is not correct because aqueducts transport water from the mountains, but they do not improve the flow into the oceans.
