Conservation of water is necessary due to following reasons
(i) Uneven distribution Some parts of our country have high resources of water whereas other parts suffer from chronic water shortage.
(ii) Wide seasonal as well as yearly fluctuation in rainfalls.
(iii) Water in rivers and ponds is polluted by dumping of untreated sewage and industrial wastes into it.
(iv) The changing life style of people, especially in urban areas, is consuming more water.
