All of the above is the answer
Soil erosion is defined as the wearing away of topsoil. Topsoil is the top layer of soil and is the most fertile because it contains the most organic, nutrient-rich materials. Therefore, this is the layer that farmers want to protect for growing their crops and ranchers want to protect for growing grasses for their cattle to graze on.
D. Friends of the scientists who wrote the articles
Because the word “peer” is also another word for friends
Elements that have atoms with full outer shells of electrons
Are inert
