What are the major causes of droughts in India?
1. Most of the rainfall occurs within a few months.
2. The absence of forests results in rapid run-off and thus droughts.
3. Rainfall is highly variable.
4. The amount of rainfall is inadequate.
(a) 1, 3 and 4 (b) 2, 3 and 4 (c) 1, 2 and 3 (d) 1, 2 and 4