Environment Puzzle

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Across
  1. 4. ___ is another name for global warming
  2. 5. Gases that cause global warming
  3. 7. You can _____ a plastic bottle
  4. 9. Carelessly discharged paper
  5. 11. To cut back on using harmful products
  6. 12. The most commonly used material that harms the environment
  7. 13. The exhaust produced by cars
Down
  1. 1. Grown or raised without chemicals
  2. 2. The ___ Layer has holes in it due to global warming
  3. 3. A place where garbage is brought to and later buried
  4. 4. To protect from loss or depletion
  5. 6. Strong acids such as nitric acid or sulfuric acid that fall to earth
  6. 8. Mixture of decaying materials used as fertilizer
  7. 10. To use again as for another purpose