Question

when does the indoor pollution take place ​

Answer 1

Explanation:

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Answer 2

Answer:

Most indoor air pollution comes from sources that release gases or particles into the air. Things such as building materials and air fresheners give off pollution constantly. Other sources such as tobacco smoke and wood-burning stoves also cause indoor pollution. Some indoor air pollutants have been around for years. But they often were weakened by outdoor air seeping into the home.

Explanation:

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