Types of water pollution

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Across
  1. 2. Type of pollution that is caused by surface pollutants leaching through soil, and leaky underground structures
  2. 4. How wastewater is treated for people who do not have a city sewer system
  3. 9. Occurs when harmful chemicals are released into waterways
  4. 12. How people who live outside cities and urban areas get water
  5. 13. this type of pollution Can degrade water quality, cause photosynthesis rates to decline, and disrupt food webs
  6. 15. pollution From many places spread over a large area, such as when snowmelt runoff picks up pollutants along its path
Down
  1. 1. pollution from a discrete location, like a factory or sewer pipe
  2. 3. This type of pollution happens when A heat source raises the temperature of a waterway
  3. 5. excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen.
  4. 6. Reduces biological pollution
  5. 7. Natural seeps are the largest single source of this type of pollution
  6. 8. This type of pollution occurs when pathogens enter a waterway
  7. 10. decomposition of dead organisms causes a lack of this nutrient in the water
  8. 11. occur when colonies of algae — simple plants that live in the sea and freshwater — grow out of control and produce toxic or harmful effects on people, fish, shellfish, marine mammals and birds.
  9. 14. sediment pollution results from this process.