Question

are made along points of the same height on mountain slopes using natural materials such as stones, grass, and soil in order to prevent soil erosion by the action of running water.

• A. Fences
• B. Trenches
• C. Barriers
• D. Roads

Answer 1

The correct option is C Barriers

Barriers are made along points of the same height on mountain slopes using natural materials such as stones, grass, and soil in order to prevent soil erosion by the action of running water. Trenches can then be dug in front of the barriers to collect water and slow it down. This type of barrier is called a 'Contour Barrier'.