what is air pollution
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Air pollution refers to any physical, chemical or biological change in the air. It is the contamination of air by harmful gases, dust and smoke which affects the plants, animals, and humans drastically. An increase or decrease in the composition of these gases is harmful to survival.
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Air pollution is when unwanted chemicals, gasses, and particles enter the air and the atmosphere causing harm to animals and damaging the natural cycles of the Earth.
Some sources of air pollution come from nature. These include eruptions of volcanoes, dust storms, and forest fires.
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