Pollutants that are formed in a manufacturing process or in the combustion process are called

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Primary pollutants are those that are directly released into the atmosphere from a source, such as a manufacturing process or combustion. Examples include carbon monoxide and sulfur dioxide. Secondary pollutants are those that are formed through chemical reactions in the atmosphere, such as ozone and acid rain. Smog is a type of air pollution that is characterized by a hazy appearance and can be caused by a combination of primary and secondary pollutants. Acid rain is a form of precipitation that is caused by the reaction of pollutants in the atmosphere with water.

Pollutants That Are Formed in a Manufacturing Process or in the Combustion