Which of the following will not allow the water cycle to occur if it were left out?
a. wildlife
b. fungi
c. glaciers
d. solar energy

d. solar energy

Explanation:

Solar energy is derived from the ultimate source of energy in our galaxy, the sun. Energy from the sun is responsible for all external processes that takes place on the surface of the earth.

The water cycle involves the movement of water on earth in various forms. Amount of solar energy in a particular place at a point in time determines different sections of the cycle. Without solar energy, the cycle will not occur.