Question

What does smoke coming from factories contain?

Answer 1

Industrial pollution is one of the primary sources of environmental contamination. According to the U.S. Environmental Protection Agency (EPA), air pollution levels rose 14 percent from 1990 to 2008. This trend reflects the amount of human-caused greenhouse gas emissions in the air. Air pollution can have profound effects on the health of the entire planet.

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Answer 2

the smoke from the factories contains carbon dioxide, methane, and nitrous oxide in them.