7. (Power generation) One major source of electricity is hydroelectric generation, in whict flowing water is redirected to turn a turbine generator. The distance the water falls on its wa to the generator is referred to as the water's head. If the water's head is less than 10 meters pw-head site, and a large volume of water is needed to generate enog electricity. At a high-head site, the water's head is more than 20 meters. A large volume of wate isn't needed at these sites, as gravity provides the necessary energy boost. Using this information, write a C++ program that displays one of the following messages, base on the value entered for the water's head: This is a low-head site. This is a high-head side This site is between a low- and high-head site. (Euid