The method of soil conservation in which stones grass, soil are used to build barriers along contours and trenches are made in front of the barriers to collect water is called?

A. Mulching

B. Contour barriers

C. Rock dam

D. Terrace farming

Answer: Option B

Solution(By Examveda Team)

The process of forming contour strips with the help of stones, grass and soil which intercept the downslope flowing of water is done to prevent soil erosion in hilly terrains. These strips of stone, grass and soil are called contour barriers.