Across
- 1. life in ocean
- 3. caused by raw fuel in water
- 5. farming, main cause of water pollution
- 7. substances used to kill or control pests
- 8. something that pollutes a substance or makes it impure
Down
- 2. caused by excess nutrients in water
- 4. single identifiable and concentrated source of something
- 6. caused by non-degradable materials in ocean