Wonderful Wildlife

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Across
  1. 1. to protect something from danger (verb)
  2. 3. catching or killing animals on other people's land without permission (noun)
  3. 6. very important and need attention immediately (adj.)
  4. 7. the home of animals (noun)
  5. 9. cutting down trees in a large area (noun)
Down
  1. 2. in danger of being harmed (adj.)
  2. 4. catching too many fish in an area of the sea (noun)
  3. 5. damaging caused to air, and water by harmful substances (noun)
  4. 8. the disappearance of an animal species (noun)