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Across
  1. 3. have been widely documented as
  2. 5. are algae that live in houses made of glass
  3. 8. indicators of environmental water
  4. 9. insects such as stone flies,
  5. 10. of environmental stress and
  6. 13. substances, such as pesticides, or other
  7. 14. in an organism.
  8. 15. in a food chain
  9. 17. to pollution.
  10. 20. increasing concentration of a substance,
  11. 21. increase or decrease in an animal population may
  12. 22. SYSTEM
  13. 23. of Eichornia indicates
Down
  1. 1. or biological magnification, is
  2. 2. of gold in the soil
  3. 3. are considered accurate
  4. 4. is the gradual accumulation
  5. 6. water
  6. 7. because of their differential
  7. 10. damage to ecosystem caused by pollution
  8. 11. and heavy metal pollution
  9. 12. also known as
  10. 16. spp. Indicate the
  11. 17. as a toxic chemical, in the tissues of
  12. 18. health of biosphere as a whole
  13. 19. organisms at successively higher