Question

which renewable energy resource possesses the greatest potential for providing enough energy to sustain human populations in the
a. tidal
b. water
c. solar
d. coal

Explanation:

First, eliminate non - renewable energy: coal (option D) is a fossil fuel, non - renewable. Then, among renewable options (tidal, water, solar), solar energy has an extremely large energy potential as the sun's energy reaching Earth is vast and can be harnessed in many regions. Tidal and water energy have more location - based limitations.

Answer:

C. solar