water pollution

2. The thick, muddy solid material that remains after wastewater treatment.
4. A substance used for destroying insects or other organisms harmful to cultivated plants.
5. A rapid increase or accumulation in the population of algae in freshwater or marine water systems.
8. Water located beneath the Earth's surface in soil and rock fractures that can get contaminated.
9. Pollution that comes from a single, identifiable origin, like a specific pipe or factory
12. Rainfall made sufficiently acidic by atmospheric pollution that it causes environmental harm.
13. Type of pollution that occurs when power plants discharge superheated water back into a river.

1. The measure of relative clarity of a liquid; how cloudy or muddy the water looks.
3. The process where excessive nutrients cause dense plant and algae growth, depleting oxygen.
4. Anything added to water that harms the living things inside it.
6. Tiny plastic particles that pollute the ocean and harm marine life.
7. A chemical or natural substance added to soil to increase its fertility, which often runs off into rivers.
10. Rainwater or snowmelt that flows over the ground and picks up pollutants on its way to waterways.
11. Wastewater and excrement notes carried in sewers from homes and factories.