Across
- 4. The introduction of harmful materials into the environment
- 6. Warming the long-term warming of the planet's overall temperature
- 9. The physical world and everything in it; not made by the people
- 11. To convert waste into reusable material
- 13. To use something again, especially for a different purpose
- 14. Waste material that is no longer needed or wanted
Down
- 1. Natural or artificial substance that improves plant growth and productiveness
- 2. A living thing that grows in soil and has a stem, leaves, and roots
- 3. To make something smaller or use less of it
- 4. A synthetic material; one of the main pollution for marine life and ecosystems
- 5. A huge body of saltwater that covers about 71 percent of Earth's surface
- 7. Waster material that is discarded improperly
- 8. A biological community of interacting organisms and their physical environment
- 10. Tall woody plants with a single main stem or trunk and many branches
- 12. The planet on which we live