The total amount of water on earth is fixed then why studies shows that 40% of the world's population live in water stressed areas.
Answers
Nowadays, water seems to be insufficient for every living organism on the planet even though earth has almost 70 percentage of its portion covered with water.
According to the geological survey of United States, earth’s icecaps and glaciers has nearly 68% of fresh water which are certainly inaccessible.
Surface water sources like lake, river and swamps has 0.3% of fresh water.
Nearly 30 percentage of freshwater is runs under the ground.
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The total amount of water on earth is fixed then why studies shows that 40% of the world's population live in water stressed areas.
Answer :-
Water scarcity in several areas is due to the fact of over-population.
Large number of people utilize and exhaust the remaining water which leads to shortage of water.
Water scarcity is also due to improper water management techniques.
Water harvesting if not practised leads to shortage of water.
About several part of the water is also polluted and hence it cannot be used for several purposes.
Thus 40% of the World is under water-stressed areas .