Nature and The Environment

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Across
  1. 3. substances if you eat these, you'll get very sick or die
  2. 6. air
  3. 8. when you guess the meaning of something from the information you have
  4. 9. the area around you
  5. 15. a group of people born in the same period of time
  6. 18. grow
  7. 20. to use less than before
  8. 21. populated few people living in a large area
  9. 22. a long passage under the ground
  10. 23. visibility unable to see clearly or far
Down
  1. 1. a facial expression which means you're confused
  2. 2. unusual
  3. 4. people living in a certain area
  4. 5. the protection of plants, animals & nature
  5. 7. something you do with your nose
  6. 9. dirty air
  7. 10. able to be used again and again
  8. 11. to enable rubbish to be used again
  9. 12. populated many people living in a very small area
  10. 13. damage caused to the environment
  11. 14. blocked or crowded
  12. 16. to to talk or write about somebody or something
  13. 17. to use things again
  14. 19. the place we live