The most abundant elements in common crustal igneous rocks are ________.
A) calcium and sodium
B) iron and magnesium
C) oxygen and silicon
D) granite and basalt
Correct Answer:
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Q22: The classification and nomenclature of igneous rocks
Q23: Which igneous rock or magma has the
Q24: Changing the composition of magma by incorporating
Q25: Which of the following igneous rocks is
Q26: Felsic rocks have silica contents of _
Q28: The mechanism of selectively removing the minerals
Q29: Which of the following igneous rocks is
Q30: Felsic rocks like granite _.
A)are major constituents
Q31: Mafic rocks have silica contents of _
Q32: As the silica content varies from less
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