Author Question: Why is diorite considered a coarse-grained intermediate rock? A) It contains a medium amount of ... (Read 67 times)

olgavictoria

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Why is diorite considered a coarse-grained intermediate rock?
 
  A) It contains a medium amount of silica.
  B) It contains a lot of silica.
  C) It contains very little silica.
  D) It is made up of the elements in the middle of the periodic table.

Question 2

Why is tonalite considered a coarse-grained felsic rock?
 
  A) It contains very little silica.
  B) It contains a lot of silica and feldspar.
  C) It contains a lot of silica and magnesium.
  D) It contains a lot of iron and magnesium.



bobsmith

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Answer to Question 1

Answer: A

Answer to Question 2

Answer: B



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