Environmental issues and solutions

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Across
  1. 2. no trash is thrown away
  2. 7. using too much
  3. 8. change from solid to liquid
  4. 10. put in danger
  5. 11. break or harm something
  6. 14. good for the environment (adj)
  7. 16. make air, water, or land dirty
  8. 19. make old things new again
  9. 20. energy from nature that never runs out
Down
  1. 1. big changes in the world’s weather
  2. 3. things you throw away
  3. 4. can continue without harming nature (adj)
  4. 5. a big uncontrolled fire in nature
  5. 6. collects energy from the sun
  6. 9. use badly or unnecessarily
  7. 12. the Earth is getting hotter
  8. 13. a long time with no rain
  9. 15. grown without chemicals
  10. 17. try to solve a problem
  11. 18. too much water in an area