Back to nature crossword puzzle

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Across
  1. 4. A natural event that causes destruction (8 letters)
  2. 7. A tall plant with a trunk (4 letters)
  3. 9. harmful effects caused by human activities (13 letters)
  4. 10. Unwanted materials that need to be disposed of (5 letters)
  5. 11. A change in typical weather patterns over time (7 letters)
  6. 13. It falls from the sky when it rains (5 letters)
  7. 14. Reusing materials to create new products (9 letters)
Down
  1. 1. A sudden overflow of water (5 letters)
  2. 2. A sudden shaking of the ground (10 letters)
  3. 3. energy Source of power from natural processes like wind or sun (15 letters)
  4. 5. Large body of saltwater (5 letters)
  5. 6. warming Gradual increase in Earth’s temperature (13 letters)
  6. 8. Sound made by something vibrating (5 letters)
  7. 12. Large,rocky elevation (8 letters)