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1I formed when decaying swamp plants were buried and subjected to heat and pressure over millions of years. What am I?toxic waste
2I am a natural resource that cannot be reused or quickly replaced. What am I?nonrenewable resource
3I am a mixture of smoke and fog that usually forms over cities. What am I?smog
4I am a place with a special lining where garbage is collected, and I get covered with soil. What am I?landfill
5I form when nitrogen and sulfur from burning fossil fuels combine with moisture in the air. What am I?acid rain
6I am a natural resource that can be reused or replaced quickly. What am I?renewable resource
7I am the word used to describe garbage that breaks down quickly and naturally. What am I?coal
8I am a collection of poisonous materials that must be handled very carefully. What am I?biodegradeable