water pollution is a major problem in urbun areas with refrence to examples explain some of the causes of this pollution and why it is a major problem to the people who rely on this water supply

Air pollution is caused by solid and liquid particles and certain gases that are suspended in the air. These particles and gases can come from car and truck exhaust, factories, dust, pollen, mold spores, volcanoes and wildfires. Alot of these particles come from groups of people. Such as people at drive gas - reliant vehicles, factory workers, etc.

I hope this helped ! :)

associative property of addition