Across
- 2. What we drink and use every day
- 3. A huge body of salty water
- 5. To use something again instead of throwing it away
- 6. Something that can make people or animals sick or kill them
- 7. A sticky liquid that can spill in oceans and harm animals
- 8. Opposite of clean
Down
- 1. What is in sewers
- 4. Another word for garbage
- 6. To make something unsafe