Crossword Puzzle - Environmental Keywords

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Across
  1. 2. Metallic chemical elements that are toxic at low concentrations
  2. 5. Coming from a specific place that can easily be identified
  3. 8. The ability to do work
  4. 9. Atmospheric gas that absorbs and emits radiation, such as CO2, CFC's, or methane
  5. 11. A different version of an element
  6. 13. Increase in concentration of a chemical at higher levels of the food chain
  7. 15. Increase in concentration of a chemical in a biological organism
  8. 19. Drastically reducing the amount of ice in the Arctic
  9. 21. Extended periods of hot weather which can cause death or drought
  10. 22. This type of energy is replenished naturally within a short period of time
Down
  1. 1. Excessive disruptive and harmful noise
  2. 3. Continues to use and drain power, even when turned off
  3. 4. The process of splitting an atom
  4. 6. Natural or artificial feature able to store carbon/carbon-based compounds for a long time
  5. 7. Electromagnetic radiation that's shorter than visible light, but no longer than x-rays
  6. 10. The energy of motion
  7. 12. Energy that is stored
  8. 14. Genetically modified organisms
  9. 16. Mixture of ingredients used as plant fertilizer
  10. 17. Transforming unwanted material into new products
  11. 18. This type of energy has a limited supply, because it takes a long time to be replenished naturally
  12. 20. A measure of how acidic or basic a solution is