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Home Q & A Board Science-Related Homework Help Geography and Earth Sciences
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gi.x3 gi.x3
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6 years ago
Which of the following caused devastating effects on the marine food chain and was banned in the United States in 1972?
 
  A) DDT
  B) Methyl mercury
  C) PCBs
  D) Polycyclic aromatic hydrocarbons
  E) Sewage sludge
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dalenambawandalenambawan
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6 years ago
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gi.x3 Author
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6 years ago
Good timing, thanks!
gage
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Yesterday
Thanks
aricketts6@
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2 hours ago
This helped my grade so much Perfect
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