Dog Sense of Smell Mr Rundhaug English

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Across
  1. 5. A plant or animal that is not native and causes harm
  2. 7. Causing or related to cancer
  3. 8. To study or examine carefully
  4. 10. Unusual or harmful growths of tissue
  5. 12. Circles or twisting movements
  6. 13. A large group or lump of something
  7. 14. Large numbers of insects or animals invading a place
  8. 15. Full of holes and able to absorb liquids
Down
  1. 1. People who carefully study and investigate a topic
  2. 2. Chemicals used to kill harmful insects or pests
  3. 3. To discover something hidden
  4. 4. Fields where grapevines are grown
  5. 6. The parts or structure of a living body
  6. 9. Qualities or items that are useful or valuable
  7. 11. Related to smell