| Which of the following are methods of soil conservation? |
| 1. Mulching |
| 2. Contour Barriers |
| 3. Rock Dam |
| 4. Intercropping |
| 5. Shelter Belts |
| Select the correct answer using the codes given below. |
A) 1, 2 and 4
B) 1, 3 and 4
C) 2, 3 and 5
D) All of these
Correct Answer: D
Solution :
[d] All the given options are the methods of soil conservation. 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 earners 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. Intercropping Different crops are grown in alternate rows and are sown at different times to protect the soil from rain wash. Shelter Belts In the coastal and dry regions, rows of trees are wanted to check the wind movement to protect soil cover.
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