_________ can make the air dirty
Cars
_________ more can help stop air pollution
Walking
We need air to _________ .
breathe
__________ can make the air dirty
Factories
What kind of pollution is this?
Water Pollution
What kind of pollution is this?
Air Pollution
___________ can make the air dirty
Fire
We need to ________.
drink
________ can make water pollution
Ships
What kind of pollution is this?
Land Pollution
_________ can make land pollution
Trash