I formed when decaying swamp plants were
buried and subjected to heat and pressure over
millions of years. What am I?

I am a natural resource that cannot be reused or
quickly replaced. What am I?

I am a mixture of smoke and fog that usually
forms over cities. What am I?

I am a place with a special lining where garbage is
collected, and I get covered with soil. What am I?

I form when nitrogen and sulfur from burning
fossil fuels combine with moisture in the air.
What am I?

I am a natural resource that can be reused or
replaced quickly. What am I?

I am the word used to describe garbage that
breaks down quickly and naturally. What am I?

I am a collection of poisonous materials that must
be handled very carefully. What am I?