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Author Question: Chlorinated hydrocarbon pesticides, like DDT, are synthetic versions of A) heavy metals. B) ... (Read 87 times)

ghost!

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Chlorinated hydrocarbon pesticides, like DDT, are synthetic versions of
 
  A) heavy metals.
  B) non-biodegradable, persistent molecules.
  C) ions and salts.
  D) vitamins and minerals.

Question 2

The destruction of oyster larvae in Oregon aquaculture tanks was caused by
 
  A) pathogenic bacteria.
  B) minute predators accidentally imported in sea water.
  C) temperatures too warm for larval survival.
  D) increase in the acidity of sea water in which the larvae were incubated.



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pratush dev

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Answer to Question 1

B

Answer to Question 2

D





 

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