Ocean pollution crossword puzzle

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12345678910111213
Across
  1. 4. petrol
  2. 7. up natural resource
  3. 8. rain
  4. 9. conservation
  5. 12. effect
  6. 13. slick
Down
  1. 1. energy
  2. 2. species
  3. 3. waste
  4. 5. products
  5. 6. development
  6. 10. resources
  7. 11. monoxide