Suggest a solution to water crisis and explain its advantages.

Explanation

One of the devices to overcome water crisis is installation of rain water harvesting devices.
The advantages of this device are as follows.
(i) It promotes water conservation and increase of underground water table.
(ii) It mitigates the effect of drought.
As the surface run off is reduces, it reduces soil erosio.
(iv) It also reduces flood hazards.
(v) It improves ground water quality and decrease salinity.
(vij The sustainable water storage in underground is an ecofriendly measure to supply water for local community.