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| 1. |
Why does air pollution increase during winter? |
| Answer» The reason for this is that cold air is denser and has less space between the molecules of gas. When the temperature drops and cold air blankets the ground, any warm air is forced to pass over it. In this way, the cold air can form a kind of cap. Pollutants aren\'t as free to escape and disperse in the dense colder air. | |