The statement "topsoil is generally considered a renewable resource because of the length of time it takes to replenish soil that is lost" is true.
Option: (a)
Explanation:
Compared to the non-renewable resources that generally take millions of years to revive and come available in their natural form, the topsoil takes only about 500 years to replenish.
This period is considered to be too short on the geological timeline and hence, the topsoil is categorized as a renewable resource.
The speed of replenishment of topsoil accelerates decelerates depending on the climatic conditions.