Across
- 4. The moving of people or goods from one place to another.
- 5. Things that get thrown away; garbage.
- 7. The power we use to do things.
- 9. To turn waste into new, useful materials.
- 10. The practice of protecting our natural resources.
- 13. A word for all the animals and plants in a certain area.
- 14. A type of power that comes from the sun.
Down
- 1. To keep something safe from harm or damage.
- 2. A material that can be melted down and used again.
- 3. A substance that dirties the air or water.
- 6. The air, water, and land around us.
- 8. A harmful gas or substance released into the air.
- 11. Naturally grown without chemicals or pesticides.
- 12. Something that can be used again, like solar power.
- 15. To make something less, like less waste.