Question : The method of soil conservation in which stones, grass and soil are used to build barriers to collect water is called
Option 1: mulching
Option 2: contour barriers
Option 3: rock dam
Option 4: terrace farming
Correct Answer: contour barriers
Solution : The answer is contour barriers .
Contour barriers are simply contour strips or barricades used to impede the flow of water and soil particles downhill. These obstacles obstruct the flow of water while also limiting its erosive force. They also filter and capture many of the suspended dirt particles, preventing them from being rinsed away.
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