Question

4 major sources of air pollution

Answer 1

There are many types of primary pollutants, including carbon oxides, nitrogen oxides, sulfur oxides, particulates, lead, and volatile organic compounds. Secondary pollutants form from chemical reactions that occur when pollution is exposed to sunlight. Ozone is a secondary pollutant that is also a greenhouse gas.

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Answer 2

Answer:

answer

Explanation:

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mobile sources – such as cars, buses, planes, trucks, and trains.

stationary sources – such as power plants, oil refineries, industrial facilities, and factories.

area sources – such as agricultural areas, cities, and wood burning fireplaces.