Mafic igneous rocks are ____.
A) high in silica and low in heavy minerals
B) low in silica and high in heavy minerals
C) high in silica and high in heavy minerals
D) low in silica and low in heavy minerals
E) only low in silica
Correct Answer:
Verified
Q16: Continental collision may form rift valleys.
Q17: In general, extrusive igneous rocks are composed
Q18: Every mineral has distinctive and recognizable physical
Q19: Much of what we know about the
Q20: Earth's inner core is primarily composed of
Q22: The boundaries between sedimentary rocks that represent
Q23: Continental shields are _.
A)coastal mountain ranges
B)large,
Q24: An island arc forms where _.
A)oceanic
Q25: Paleomagnetism helps scientists understand _.
A)the origin
Q26: Intrusive igneous rocks are, in general, _.
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