APES Crossword Puzzle 4

1234567891011121314151617181920
Across
  1. 2. destruction of waste materials by burning
  2. 5. its pollution that reduces visibility
  3. 6. species that can signal a change in the biological condition of a particular ecosystem
  4. 9. moving water that generates electricity
  5. 13. major component of photochemical smog
  6. 14. derived from replenishing natural sources
  7. 15. fertile land becomes desert
  8. 18. byproduct of wastewater treatment
  9. 19. used in insulation for pipes, floor tiles, building materials
  10. 20. bacteria found in the environment, foods, and intestines of people and animals
Down
  1. 1. water from toilets, showers, baths, kitchen sinks, laundries and industrial processes
  2. 3. converts organic materials into a nutrient-rich soil
  3. 4. rapid increase in the density of algae in an aquatic system
  4. 7. renewable fuel made from corn and other plant materials
  5. 8. fuels produced from renewable biological sources
  6. 10. body of water becomes excessively enriched with minerals and nutrients
  7. 11. waste with properties that make it dangerous
  8. 12. microscopic solids/ liquid pollutant that can cause health issues
  9. 16. pollutants that aren’t emitted but formed in atmosphere
  10. 17. recovery and reprocessing of waste materials for use in new products