saving the planet

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Across
  1. 2. numbers
  2. 5. something which pollutes the planet
  3. 6. large fish
  4. 8. someone who defends a cause
  5. 9. last meal of the day
Down
  1. 1. the smallest forms of plastic
  2. 3. the earth
  3. 4. a typical restaurant in Amrica
  4. 5. the food of whales
  5. 7. a big sea