the environment

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Across
  1. 5. Protecting nature from harm
  2. 7. To use something again
  3. 8. Contamination of water bodies
Down
  1. 1. Capable of being broken down naturally
  2. 2. To process used materials into new products
  3. 3. Energy from the sun
  4. 4. The variety of life in the world
  5. 6. Gases released into the air