Q. Which of the following is/are soil conservation method/s?
1.Mulching
2.Contour barriers
3.Rock dam
Select the correct answer from below given codes:
Answer: C
Notes:
Explanation: Some methods of soil conservation are listed below:
- Mulching: The bare ground between plants is covered with a layer of organic matter like straw. It helps to retain soil moisture.
- Contour barriers: Stones, grass, soil are used to build barriers along contours. Trenches are made in front of the barriers to collect water.
- Rock dam: Rocks are piled up to slow down the flow of water. This prevents gullies and further soil loss.
Source: NCERT
