water pollutions

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Across
  1. 5. Solid waste material
  2. 6. An illness-causing bacterium, virus
  3. 7. multiple places that exert pollutions
  4. 8. A group of microorganisms in the human intestines that can serve as an indicator species for potentially harmful microorganisms associated with contamination by sewage.
  5. 9. A dramatic change in water temperature that can kill organisms.
Down
  1. 1. contamination in our streams river oceans etc
  2. 2. human waste in the water
  3. 3. the amount of oxygen a ecosystem uses
  4. 4. A large container that receives wastewater from a house as part of a septic system.