Across
- 4. these produce products but they can also produce waste water that is harmful
- 5. human waste
- 8. these are sprayed on weeds, but contribute to water pollution
- 9. we can pick this up near beaches to help keep water clean
Down
- 1. this river carries about 1.5 million tons of pollution into the Gulf of Mexico
- 2. these are sprayed to keep insects off of plants, but contribute to water pollution
- 3. these are a natural cause of water pollution
- 6. when sulfur dioxide mixes with the air and combines with water to make a harmful precipitation
- 7. one of the water pollutants, can come from factories