Across
- 3. another water pollutant is runoff containing ______________ and pesticide
- 5. ______________ spills cause harm to birds and marine life
- 6. sewers, where waste is collected
- 9. water ________________ plant collects waste water which will then be treated
Down
- 1. disposing ________________ pollutes water bodies
- 2. process to filter drinkable water from sea water
- 4. our sewage goes through internal __________________ drain lines
- 7. water has to undergo ________________ before being released back into water bodies
- 8. Singapore's _________________ Barrage which boosts Singapore's water supply