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Author Question: Why does Silica content in most magmas range from 45 to almost 80 percent by weight? A) Silica is ... (Read 101 times)

corkyiscool3328

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on: Jul 16, 2018
Why does Silica content in most magmas range from 45 to almost 80 percent by weight?
 
  A) Silica is very heavy and therefore throws off the percent weight.
  B) Silica is made up of silicon and oxygen, two elements most prevalent in the earth's crust.
  C) Silica is a very heavy gas.
  D) Silica is extremely light.

Question 2

True or False: The composition of the magma determines the minerals that form in an igneous rock.
 
  Indicate whether this statement is true or false.


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Amiracle

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

Thank you for answering this question.

Answer to Question 2

Answer: TRUE


corkyiscool3328

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Reply 2 on: Jul 16, 2018
Excellent

brbarasa

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Reply 3 on: Yesterday
Wow, this really help

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