The answer is smog
ozone
Urbanization and industrialization
Car pollution is a major problem in cities around the world. Large cities in China and India are suffering serious issues because of car pollution.
no
compost
You and your question!!!
agricultural water runoff from farmland
roadways
factories and cars
The largest source of human-caused air pollution is the burning of fossil fuels. 90% of air pollution is from power plants and automobiles.
77% i think
Large cities need lots of energy to heat homes and power factories. Coal provided abundant, cheap energy, although it also creates lots of air pollution.
The three major types of pollution are air pollution, water pollution, and land pollution. Sometimes, air pollution is visible. A person can see dark smoke pour from the exhaust pipes of large trucks or factories, for example. More often, however, air pollution is invisible.