In your second paragraph, state why erosion is a problem. explain how erosion can harm an ecosystem and ruin the value of a natural resource. if you can, find out how long it takes new soil to form and explain why we should be concerned about losing soil to erosion

Soil erosion is the natural and man-made process that affect the fertility of the soil by taking away its nutrient values.The loss of soil from agricultural and nonagricultural land is a serious threat to all around the world.The removal of the top layer of the soil because of wind and moving water is called soil erosion but this is the natural process of erosion.While deforestation and other human activities like domesticated animal grazing led to soil erosion.

Efficiency is an action of doing something. for example when you take a test. good efficiency means you did well but bad effeciency or no effiency means you did bad.