Reasons of Shortage of Water

• Population increase
• Industrialization
• Urbanization  
• Increase in per capita utilization
• Less peculation area
• In places where rain fed/ irrigation based crops are cultivated through ground water
• Decrease in surface area of Lakes, talab, tanks etc.

     Deforestation
     (i) Less precipitation
     (ii) Absence of Barriers
        (a) Rain drops checked by leaves of tree
        (b) Water slowly descends through twigs & trunk
        (c) Humus – acts as reservoir
        (d) Tiny creatures – helps percolation

Do you know--------

1 hectare of forest-6-7 Lac ton of water(after filtering) top layer can hold 1.2 Lac tons of water.