ELEMETARY DOCTOR WATSON !!

ELEMENTARY DOCTOR WATSON  !!

When it rains,  some water goes down the drain and into the river , some water seeps through mud and grass to go underground.  The water that seeps underground raises the water table. 

 If underground water is pumped out constantly without replenishment,  a void is created underground

.. This  is likely to create a serious crisis in not so distant a future. The trees whose roots are not very deep stop getting water from underground and they dry up . With water level further going down, big trees also dry up ,  lakes also dry up. 

And finally  the  land start sinking . And a fertile land eventually turns into a desert.

That is why it is important to leave a lot of land in the cities unpaved so that water table gets  constantly replenished in a natural way.

Unless we learn to live with nature,  nature will strike back in more ways than one.