Question

when is wood a nonrenewable resource?
a. when more trees are harvested than are replanted.
b. when trees are harvested and replanted at the same rate.
c. when trees are used as an energy resource.
d. when trees are used as a material resource.

Explanation:

A nonrenewable resource is one that cannot be replenished at the rate it is consumed. Wood comes from trees; if harvest outpaces replanting, trees cannot be replaced fast enough, making wood act as a nonrenewable resource. Options B describes a renewable cycle, while C and D do not change the renewability based on use type alone.

Answer:

A. When more trees are harvested than are replanted.