Answer: It is useful for peak shaving and It requires two bodies of water that are at different heights
Explanation:
Pumped storage are useful for peak shaving and it requires in two bodies of the water which are at the different heights as, the pumped storage are useful solution for the grid reliability and providing the large scales by the affordable means of the storing and deploying electricity. The pumped storage are stored and generated the energy by the moving water in the two reservoirs at the different elevations.
I'm thinking A. Because uniformitarianism means the theory that changes in the earth's crust during geological history have resulted from the action of continuous and uniform processes.
