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Author Question: Most cratons date to the A) Precambrian eon. B) Paleozoic era. C) Devonian period. D) ... (Read 61 times)

crobinson2013

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Most cratons date to the
 
  A) Precambrian eon.
  B) Paleozoic era.
  C) Devonian period.
  D) Paleocene epoch.

Question 2

In food webs, toxic chemicals tend to accumulate and concentrate most in the
 
  A) top carnivores.
  B) herbivores.
  C) omnivores.
  D) autotrophs.



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Fayaz00962

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Answer to Question 1

A

Answer to Question 2

A




crobinson2013

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Reply 2 on: Jul 14, 2018
Excellent


CAPTAINAMERICA

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Reply 3 on: Yesterday
:D TYSM

 

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