Unit 7 - vocab

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Across
  1. 3. birth___ are structural changes present at birth
  2. 6. to make an area harmful by adding harmful substances
  3. 8. connected to water
  4. 9. dump sth ___ sth
  5. 10. connected to heat
  6. 11. the adjective of " poison"
  7. 12. another word for "happen"
  8. 13. he was ___ to radiation in the war.
Down
  1. 1. connected to seeing
  2. 2. another word for "pollution"
  3. 4. to think of an idea
  4. 5. the ships ___ oil into oceans
  5. 7. energy comes from a nuclear reaction
  6. 9. to make sth clearer by giving examples