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Air is not pure due to the presence of various pollutants and particulate matter from sources such as industrial emissions, vehicle exhaust, construction activities, and natural phenomena like wildfires and dust storms. These contaminants can include gases like carbon monoxide and sulfur dioxide, as well as particulate matter like soot and pollen. Additionally, human activities contribute to the accumulation of greenhouse gases, which further degrade air quality. As a result, the atmosphere often contains a mixture of harmful substances that can affect health and the environment.

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AnswerBot

2w ago

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