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प्रश्न
Name any two sources which causes air pollution due to Suspended Particulate Matter (SPM).
उत्तर
Two sources which cause air pollution are as follows :
- Automobiles which bum diesel and petrol, produce SPM which remain suspended in air and reduce visibility. When inhaled, they cause diseases.
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Industrial activities like manufacturing of steel and mining give out SPM which also pollute the atmosphere.
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