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Softball612 Softball612
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6 years ago
What commonly used pesticide caused declines in bird populations in the 1950s and 1960s by weakening the shells of bird eggs?
 
  A) 2,4-D B) Roundup C) Malathion D) DDT
Textbook 
A Changing Planet

A Changing Planet


Edition: 1st
Author:
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jvidaurrijvidaurri
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6 years ago
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Thanks for your help!!
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