Water Pollution

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Across
  1. 2. oil discharged accidentally or intentionally
  2. 4. wastewater and excrement conveyed in sewers
  3. 6. causes impurity by polluting
  4. 7. a chemical element
  5. 10. aquatic plant
  6. 11. a harmful change from a normal structure
  7. 12. released into the environment disrupts the balance
Down
  1. 1. chemical added to soil
  2. 3. goes into the recycling
  3. 5. the science of farming
  4. 8. the act of emitting radiation spontaneously
  5. 9. area of land that separates water