| A | B |
|---|
| acid rain | precipitation that is more acidic than normal |
| garbage | any matter that is no longer wanted or needed; trash |
| hazardous waste | waste that can cause serious damage to human health; toxic |
| inversion | occurs when cool, polluted air becomes trapped under warm air |
| pollution | release of substances that change the environment for the worse |
| radioactive waste | waste produced by the generation of energy in nuclear power plants |
| recovery facility | a facility that generates electricity from burning waste material |
| sanitary landfill | solid-waste dump where garbage is compacted and covered with soil |
| smog | brown haze formed from air pollution; combines smoke and fog |
| thermal pollution | unnatural increase in water temperature that affects water biology |
