China has constructed the massive gorges dam to conserve water.

a. three
b. two
c. four

The correct answer is A. China has constructed the massive Three Gorges Dam to conserve water.

Explanation:

The Three Gorges Dam is a hydroelectric plant located in the course of the Yangtze River in China. It is the largest hydroelectric plant in the world in terms of area and installed capacity, but it is the second largest in the world in terms of energy production. The name of the three gorges that make up the dam are: Xiling, Wuxia and Qutang.

#2 the answer is d

#3 the answer is a

#4 the answer is b

the  seven  days  battles  were  a series of seven battles over seven  days from june 25 to july 1, 1862, near richmond, virginia,  during  the american civil war. the  seven  days ended with mcclellan's army in relative safety next to the james river, having suffered almost 16,000 casualtiesduring  the retreat.