Question

How much of the total water on the earth is available for human use?

Answer 1

About 71% of earth is covered with water and the oven hold about 96.5%, 1% as saline groundwater and remaining 2.5% as fresh water in river, lakes, snow and ice out of which 70% stored in the form of ice sheets and glaciers. less than 30% of this is stored below the earth surface as ground water