What problem has China tried to solve by building hydropower dams, such as the Three Gorges Dam?
A.scarcity of water>>>>>
B.lack of arable land
C.production of greenhouse gases
D.damage from earthquakes and tsunamis
(why do i think it is A because Dam construction has played significant roles in flood control, irrigation, navigation, and energy supply; however, the enormous negative effects, such as landslides, ecological problems, and Water Quality decline, could surpass positive gains.)