Give the reason we should not allow the water to stagnant.
Give reasons why :
(a) Waste water should not be allowed to stagnate in puddles.
(b) Waste water from a factory should not be allowed to mix with drinking water.
(c) Rubber, plastic should not be burnt.
(d) The quantity and types of garbage generated have increased.
Give reason: our surrounding area should be free of stagnant water.
Cuts and wounds should not be allowed to come in contact with soil. Give reason.