| A | B |
|---|
| land pollution | When pollutants are added to the land. |
| natural resource | Material from Earth that people use. |
| biodegradable | Able to be broken down or decomposed. |
| incinerator | Furnace for burning waste. |
| nonrenewable resource | Natural resource that can not be replaced once it is used. |
| renewable resource | Natural resource that can be replaced as it is used. |
| ecosystem | All the interacting living and nonliving things in an area. |
| pollutant | Harmful substance in the air, land or water. |
| recycle | To treat or change waste so it can be used again. |
