| Consider the following statements. |
| 1. Terrace farming are made on the steep slopes, so that flat surfaces are available to grow crops. They car reduce surface run-off and soil erosion. |
| 2. In intercropping, different crops are grown in alternate rows and are sown at different times to protect the soil from rain wash. |
| 3. Contour barrier is ploughing parallel to the contours of a hill slope to form a natural barrier for water to flow down the slope. |
| 4. Shelter belts are the rows of trees that planted to check the wind movement to protect soil cover in the coastal and dry regions. |
| Which of the statements given above are correct? |
A) 1 and 3
B) 1, 2 and 3
C) 2 and 4
D) (d) 1, 2 and 4
Correct Answer: D
Solution :
[d] Contour ploughing is ploughing parallel to the contours of a hill slope to form a natural barrier for water to flow down the slope while contour barriers are obstructions made on the slopes with the help of stones, grass, trenches in the soil to collect water. Thus, statement 3 is incorrect.
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