Nature and The Environment

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Across
  1. 3. to enable rubbish to be used again
  2. 4. few people living in a large area
  3. 7. the place we live
  4. 8. dirty air
  5. 9. to talk or write about somebody or something
  6. 11. if you eat these, you'll get very sick or die
  7. 15. unable to see clearly or far
  8. 17. to use things not only once, but again
  9. 18. a group of people born in the same period of time
  10. 20. blocked or crowded
  11. 21. to use less than before
Down
  1. 1. when you guess the meaning of something from the information you have
  2. 2. something you do with your nose
  3. 4. the area around you
  4. 5. many people living in a very small area
  5. 6. the protection of plants, animals & nature
  6. 10. people living in a certain area
  7. 11. a long passage under the ground
  8. 12. grow
  9. 13. unusual
  10. 14. air
  11. 16. able to be used again and again
  12. 19. a facial expression which means you're confused