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Author Question: Earth is approximately ________ years old. Fill in the blank(s) with the appropriate ... (Read 61 times)

piesebel

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on: Jul 13, 2018
Earth is approximately ________ years old.
 
  Fill in the blank(s) with the appropriate word(s).

Question 2

How can basalt have layers but not be considered a sedimentary rock?
 
  What will be an ideal response?


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ricroger

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Reply #1 on: Jul 13, 2018
Answer to Question 1

Answer: 4.6 billion

Answer to Question 2

Answer: Basalt is an igneous extrusive rock. It can pour across a surface time after time building up rock layers as it cools. Because these layers did not occur via cementation of sediments they are not sedimentary rocks.


piesebel

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Reply 2 on: Jul 13, 2018
Excellent

ebonylittles

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Reply 3 on: Yesterday
Wow, this really help

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