| A | B |
| pollution | unwanted change in the environment |
| pollutant | anything that causes pollution |
| hazardous waste | pollution that is harmful to the environment |
| radioactive waste | Wastes that give off radiation |
| renewable resources | natural resources that can be replaced at the same rate they are consumed |
| non renewable resources | natural resources that are not replaced at the same rate they are consumed |
| exotic species | animals that make home in other areas out of its native land |
| overpopulation | Presence of too many individuals |
| habitat | Where an organism lives |
| biodiversity | Number of variety of organism at any given time |
| deforestation | Is the clearing of forests |
| conservation | Preservation of wide used resources |
| recycling | recovering valuable and useful materials |
| endangeres species | Act that protects endangered species |
| EAP | Government agency that protects |