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Env. Science Ch 4
10 vocab words
| Question | Answer |
|---|---|
| ozone | a toxic form of oxygen |
| acid rain | precipitation that is more acidic than normal |
| fossil fuels | coal, oil, natural gas |
| drought | a period of less rain than normal |
| sewage | water and wastes that are washed down sinks, toilets, and showers |
| pollutants | substances that cause pollution |
| composting | helping biodegradable wastes decompose naturally |
| recycling | reclaiming and reusing raw materials |
| erosion | wind, water, and ice moving sediments |
| topsoil | upper layer of soil |