তুমি কী মনে করো, আগুনের ব্যবহার মানুষের ইতিহাসে জরুরী একটা পরিবর্তন? দুই চার টি বাক্য লেখো
Answers
Answered by
6
Explanation:
Air 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
Similar questions