Identify the fuel type with the longest time to renew. A) hydroelectric B) solar C) wind D) wood

The answer is D

The fourth alternative is correct (D).

Among the fuel options listed in this issue, wood is the natural input that is slow to renew. This is because the trees can take many years to grow, depending on each species.

However, water, wind and sun are rapidly renewable. The wind and the sun happen almost every day, while the water is renewed from a rainy cycle.