Question

what may be the highest war deaths at 20th century​

Answer 1

Answer:

pollution is a mixture of solid particles and gases in the air. Car emissions, chemicals from factories, dust, pollen and mold spores may be suspended as particles. Ozone, a gas, is a major part of air pollution in cities. When ozone forms air pollution, it's also called smog.

Answer 2

Answer:

2%

Explanation:

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