Answer: The point source pollution has only a single source. The nonpoint source comes from many diffuse sources. The nonpoint source's pollution is caused by rainfall or snowmelt moving over and through the ground. It can cause problems with the quality of the water. It is caused by disconnected sources of pollution.
By definition, a "concurrent power" refers to a power wherein it is "shared by both the State and the federal government." Therefore, the answer for the question would be "<span>shared by national and state governments." which is letter D. In addition, these powers include regulating elections, and taxing.</span>