They cannot be renewed. Sometimes, though, renewable resources are used up faster than they can be renewed. These are harmful substances in our air or water. When certain items are dumped into landfills or burned in incinerators, they give off pollutants. This is where much of our trash ends up and is buried.
Landfills are often in low-lying areas where refuse is buried between layers of earth.
This is our garbage. A solid is anything that has a definite firm shape and volume. Waste is anything thrown away, especially if it has not been used completely. The Resourceful Schools Project is funded by the St. Louis County Department of Health in association with Cooperating School Districts and MERP .