| Which of the following techniques/activities help in soil conservation? |
| 1. Crop rotation |
| 2. Terrace farming |
| 3. Construction of embankments |
| 4. Deforestation |
A) 1 and 2
B) 2, 3 and 4
C) 2 and 3
D) 1, 2 and 3
E) 1, 2, 3 and 4
Correct Answer: D
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