Question

Stone grass and soil are used to build barriers along contour trenches are made in front of the barriers collect water

Answer 1

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

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Answer 2

Answer:

Contour barriers: Stones, grass, soil are used to build barriers along contours. Trenches are made in front of the barriers to collect water.This prevents gullies and further soil loss.

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