What kind of system is generally composed of a fluid system to move the heat from the collector to its point of usage and a reservoir to stock the heat for future use?
A.
nuclear power
B.
coal burning
C.
electrical power
D.
solar heating

D

Explanation: Heating systems are generally composed of a fluid system. This system moves heat to it's point of usage   Hope this helps :)

the wetland preservation movement began in the u.s. in earnest with the clean water act (cwa) of 1972. although not specifically written to protect wetlands, the cwa is comprised of a series of regulations designed to prevent pollutants from contaminating u.s. waters.