Aquatic and Terrestrial Pollution

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Across
  1. 4. debris Human-generated solid waste, especially plastics, that enters oceans and harms marine ecosystems.
  2. 7. A designated area where solid waste is buried and managed to minimize environmental contamination.
  3. 9. The process by which excess nutrients, especially nitrogen and phosphorus, cause rapid algae growth in aquatic ecosystems.
  4. 11. The increase in concentration of toxic substances in organisms at higher trophic levels of a food chain.
  5. 15. Pollution that comes from a single, identifiable source such as a pipe, factory discharge, or wastewater treatment plant.
  6. 16. A rapid increase in algae populations in water caused by high nutrient levels, often reducing water quality.
  7. 17. The decrease in ocean pH caused by the absorption of carbon dioxide from the atmosphere.
  8. 18. An underground wastewater treatment system used in areas without centralized sewage treatment.
Down
  1. 1. A change in water temperature caused by human activities, often from power plants releasing heated water.
  2. 2. A condition in which water contains very low dissolved oxygen levels, making it difficult for aquatic organisms to survive.
  3. 3. A landfill designed with protective liners and systems to collect leachate and gases to reduce environmental impacts.
  4. 5. The unregulated disposal of waste in land or water without environmental safeguards.
  5. 6. The amount of a substance required to kill 50% of a test population, commonly used to measure the toxicity of chemicals.
  6. 8. Pollution that comes from many diffuse sources, often carried by rainfall or runoff over land into waterways.
  7. 10. The buildup of chemicals in an organism over time because the substance is absorbed faster than it is lost.
  8. 11. A measure of the amount of dissolved oxygen needed by microorganisms to decompose organic matter in water.
  9. 12. An area of water with oxygen levels so low that most marine life cannot survive.
  10. 13. Liquid that has percolated through solid waste and contains dissolved or suspended contaminants.
  11. 14. The amount of a substance that produces a specific effect in 50% of the test population.