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Author Question: In which eon of Earth's history did dinosaurs and mammals first appear? A) Hadean B) Archean ... (Read 18 times)

eruditmonkey@yahoo.com

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on: Jul 27, 2018
In which eon of Earth's history did dinosaurs and mammals first appear?
 
  A) Hadean
  B) Archean
  C) Phanerozoic
  D) Proterozoic

Question 2

The magnetic field near a strong permanent bar magnet might be 500
 
  A) microGauss.
  B) Tesla.
  C) Gauss.
  D) milliGauss.
  E) MT.


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blfontai

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Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

C


eruditmonkey@yahoo.com

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  • Posts: 546
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

yeungji

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Reply 3 on: Yesterday
Gracias!

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