Answers

2016-02-15T19:57:08+05:30
Pollution is the contamination of certain resources (air or water or land) through various human made or natural sources
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2016-02-15T19:59:31+05:30
Pollution- The act or process of polluting or the state of being polluted, especially the contamination of soil, water, or the atmosphere by the discharge of harmful substances.
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