Question

Our earth is covered with approximately 75% of water still there is an urgent need to conserve water.why?

Answer 1

as because only 3percent water is pure and rest contains salt or are present in the form of glacier

Answer 2

the overall fresh water available in earth is only 3% remaining 97% are salt water and we are wasting the available resource of water in a ratio greater than that of preserving it. also water cycle damage is one of the problem caused due to global warming which results in inadequate rainfall.