Water Pollution

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Across
  1. 3. The result of erosion
  2. 4. A tasteless odorless liquid
  3. 6. Made up of rock and sediment
  4. 7. harmful materials in the environment
Down
  1. 1. Small single-celled organism
  2. 2. A substance that provides nourishment (food)
  3. 5. Poisonous