Question

in spite of three fourth of the earth surface being coverd with water not only scarcity of water is a major problem

Answer 1

in spite of three fourth of earth surface being covered with water and facing the scarcity as a major problem because people pollute the river water or the major water sources for their domestic purposes,and industries pollute the water.
one more cause is there that is excessive population.

Answer 2

Explanation:

hand written answer for you