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List four advantages of conserving water in the form of ground water.
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Advantages of conserving water in the form of ground water:
(i) It does not evaporate.
(ii) Spreads out to recharge wells.
(iii) Provides moisture for vegetation over a large area.
(iv) Does not provide breeding ground for mosquitoes.
(v) Remain protected from contamination from human excreta, etc.