Question

Name two important agents of erosion. For each, state one method of controlling the erosion caused.

Answer 1

The two important agents of erosion are:

1. Water: 
   • Method of controlling erosion caused by water: Afforestation. Trees and their roots hold the soil together, reduce the speed of running water, and increase water absorption into the soil, thereby reducing erosion caused by water.
2. Wind: 
   • Method of controlling erosion caused by wind: Ploughing the land in a direction perpendicular to the wind direction, which reduces wind velocity and protects the topsoil from being blown away.