Answer the following questions in about 30 words. What steps can be taken to control soil erosion in the hilly areas ?
In the hilly areas soil erosion can be controlled by
1. Ploughing across contour lines can slow down the water flow in the slopes. This is known as Contour ploughing.
2. Making use of terrace farming techniques to prevent the water take away the top soil and cause erosion.
3. Using strips of grass to check erosion by wind and water. This divides the wind force and causes less damage.