Earth Month

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