Column A
Column B
1. Mining
a. clogging of irrigation canal
2. Sediments carried by
b. Polluted water
water during flood.
C. Plants will not grow
3. Conversion of farm land
healthy to commercial area.
d. Less food supply
4. Topsoil is carried away
by water.
e. Formation of sand dunes
5. Deforestation
f. Flood​