Question

how does overexploitation of water resources lead to its scarcity?

Answer 1

Over exploitation of water has resulted in scaricty of it in every where on earth. River waters are getting polluted, which is a waste water form. Hence, it leads to scaricty.

Answer 2

Population of our human breed is growing day by day. Everyday, we require more water. Overexploitation of water resources has increased the scarcity of water. Polluted water cannot be used directly. It requires energy, time and money to be purified. Every instant, someone reqhires water. Pollution by fertilisers has caused pollution of lakes and rivers, the ultimate source of fresh water on land.