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What are point sources of pollution?...

What are point sources of pollution?

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Where effluents discharge occurs at specific site.
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Read the paragraph and answer the questions following it. Water is essential for life. Without water there would be no life. We usually take water as granted for its purity, but we must ensure the quality of water. Pollution of water originates from human activities. Through different paths, pollution reaches to ground water. Easily identified source or place of pollution is called as point source, e.g.– municipal and industrial discharge pipes, where pollutants enter the water source. Non–point sources of pollution are those where a source of pollution can not be easily identified, e.g.– agricultural run off, acid rain etc. (i) How do you classify the various sources of water pollution? (ii) What are the point sources of water pollution? (iii) Name any two non-point sources of water pollution?

Assertion : Sewage, industrial effluents and waste water are non-point sources of water pollution. Reason : Surface runoff is point source of water pollution.

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Name three gases which are the major source of pollution.

Which among the given is not a natural source of air pollution?