What is pollution?
When the air, the water or land becomes dirty
How does pollution affect people?
It affects their health
What happens if people plant trees?
The air becomes cleaner
Where is noise pollution common?
In big cities
What causes soil pollution?
Waste or garbage on the ground
What can we recycle to avoid water pollution?
Plastic
What happens when people throw garbage into rivers?
Fish die/Water pollution
What causes air pollution?
Cars and factories
What do factories produce in the air?
Smoke
