Across
- 3. oil spills increase the____ in water
- 4. , water which is fit for drinking
- 5. , the purest form of water
- 6. , oil spills reduce the supply of this gas for aquatic animals
Down
- 1. , a disease that maybe caused by drinking polluted water
- 2. , a method of purifying water
- 4. , water which is not fit for drinking