Question

Is there a check dam or any other water conservation unit in your village?write a note on it

Answer 1

A Check dam is a technology that has been used to prevent erosion and to conserve water since the ancient times. Many villages and rural regions have check dams that are basically small dams built across drainage systems such as ditches, streams, etc.
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HOW THEY WORK
These not only prevent soil erosion by reducing the speed of the water flowing through, but also help in conserving water since the reduced speed of flowing water allows more water to be absorbed by the soil, thus increasing the water table levels. 

Answer 2

INTRODUCTION:Dams are the  water storage unit .

EXAMPLE - Nagarjun sagar ,Edulabad water reservior etc

Importance of dams are

1.Life line for large part where it is situated

2.Hydro power station

3.Main source for irrigation

4.Retaining the rainwater and water storage structure

5.Recharging the ground water level

6.Safe drinking water

7.Overcome various epidemic diseases and waterborne disease etc