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Author Question: A rock that is 400 million years old comes from the ________ Period. A) Paleozoic B) ... (Read 22 times)

appyboo

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on: Jul 16, 2018
A rock that is 400 million years old comes from the ________ Period.
 
  A) Paleozoic
  B) Phanerozoic
  C) Precambrian
  D) Silurian

Question 2

A rock that is 200 million years old comes from the ________ Era.
 
  A) Cenozoic
  B) Mesozoic
  C) Paleozoic
  D) Jurassic/Triassic


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leahm14

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Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: D

Answer to Question 2

Answer: B


appyboo

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Reply 2 on: Jul 16, 2018
Wow, this really help

kilada

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Reply 3 on: Yesterday
Excellent

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