Question

Which of the following elements produces no harmful emissions when used as an energy source? A. coal B. oil C. wind D. natural gas

Answer 1

C. wind

Step-by-step explanation:

Wind is a clean energy source. It produces no air or water pollution because no fuel is burned to generate electricity

Answer 2

Harnessing of the energy derived from the motion of wind is one of the many eyed cleaner sources of energy. All the rest of the choices would produce a negative impact in the environment because of the emissions. The answer is therefore letter C.