Air pollution can start when harmful gases are released into the air. (This happens often at factories.)
pollution
The first air pollution became problematic as countries such as England and the United States became industrialized. Prior to that time, wood fires constituted the main sources of air pollution.
There are many ways to teach people about air pollution. A person could start a website or podcast. Also, they could make a show and put it on public access, or start a local conservationists club. There are a load of options for getting the word out about pollution.
air pollution travels in the air
there's air pollution everywhere no matter where you go there's air pollution.
water pollution: polluting water air pollution: polluting air
In prehistoric times, when cavemen learned to make fire. The first air pollution was smoke.
There are many types of air pollution. There can be particulate air pollution from things like dirt and pollen. There can be chemical air pollution from things like engines.
China's widespread air pollution-a side effect of its booming economy
It's happening now and the main start was during the industrial revolution
Air pollution is negative
air pollution