____________  is changes to the environment that makes the earth unhealthy and dirty.  

___________ is everything around us. For example air, water, land, plants, animals, and people.

Air pollution is harmful for people, birds, plants and _________.

__________ pollution means when sounds become too loud or last too long.

__________ pollution  is the contamination of water bodies, with a negative impact on their uses.

Dumping too much trash, compost, and other toxins on an area causes _________ pollution.