Multiple Choice
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.
Correct Answer:

Verified
Correct Answer:
Verified
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