Across
- 5. foreign materials that pollute water
- 6. suspended particles are made heavier using this
- 7. physical method of water purification
- 9. chemical method that kills microbes
- 10. water borne disease
Down
- 1. should be absent in safe drinking water
- 2. a major source of water pollution
- 3. a type of agricultural waste
- 4. chemical used for water purification
- 8. water fit for drinking