Explain how rivers are polluted and suggest measures to control pollution of rivres
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What are the causes of water pollution and suggest some measures of controlling water pollution?
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Causes of water pollution are:
Disposal of garbage, domestic waste and industrial effluents into the rivers and other water bodies.
Bathing and washing clothes nearby river.
Bathing animals in rivers, ponds and lakes.
Excessive use of chemical fertilizers and pesticides on fields, that wash off into the nearby water bodies leading to biomagnification of toxic substances.
Methods to control water pollution:
Biomagnification of toxic chemicals can be controlled by judicious use of small doses of fertilizers and manure.
Sewage contains a large number of human excreta, organic matter and microbes. It should be first treated in a sewage treatment plant before discharging into water bodies.
Bathing of animals should be avoided in the water bodies and people also should refrain from bathing in rivers, ponds and lakes.
why river s are polluted :-
1 large amount of farm based and fertilizers are Drone in the rivers.
2) the waste of factories are drawn in the rivers.
3) the massive growth of algea leads to pollution.
4) some people throw plastic and garbage in the rivers.
how we control them:-
1) don't through any solid waste in the rivers.
2) avoid releasing construction river wased in the the rivers.
3) avoid releasing oils and chemicals in the rivers
4) avoid releasing garbage in the rivers.