How can humans reduce wind erosion and wave erosion?

A. by preventing farming in the affected areas

B. by spraying the affected areas with fertilizers

C.

by planting more trees in the affected areas

D. by supplying water to farmland

C. by planting more trees in the affected areas.

Explanation:

The trees serve as wind/wave breakers. They slow the wind/wave down, thereby reducing its effect.

C. by planting more trees in the affected areas

Explanation:

to reduce wind erosion is to keep the wind off the soil surface and keep it off the surface you could cover the soil surface. To cover the soil surface you could plant trees, vegetation, or any other types of plants.