Question

what is pollution ??​

Answer 1

Answer:

this is the answer

Explanation:

Pollution is the introduction of harmful materials into the environment. These harmful materials are called pollutants. Pollutants can be natural, such as volcanic ash. They can also be created by human activity, such as trash or runoff produced by factories. Pollutants damage the quality of air, water, and land.

Answer 2

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The contamination of natural resources, like air and water, by addition of harmful (toxic and poisonous) substances due to various human activities is called pollution. Pollution causes undesirable changes in the physical, chemical and biological characteristics of natural resources which adversely affect both living organisms and non-living objects. Any substance that causes pollution is called a pollutant. Carbon monoxide oxides of sulphur and nitrogen, dust, smoke, sewage, etc., are all pollutants. A substance becomes a pollutant, when its concentration increases beyond a permissible limit in the environment. For example, fertilisers are helpful in increasing the crop yield but when used in excess, they contaminate the soil and surface water. Similarly, increasing percentage of carbon dioxide due to human activities has increased greenhouse effect and global warming.

$\huge\dag\sf\green{By \: Divyanshu}$