Me and my environment

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Across
  1. 3. Reasons
  2. 5. Dirty things in water.
  3. 6. Dirty things on land
  4. 9. Tiger,rabbit, elephant,birds
  5. 10. At risk of extinction
  6. 11. men/people
  7. 12. Kind
  8. 13. How much something weighs.
Down
  1. 1. Nature
  2. 2. No longer existing or living
  3. 4. Harmful things in the air.
  4. 7. Unwanted waste and trash
  5. 8. Keep safe from danger/preserve
  6. 11. How tall something is