A(n) _____ is an assemblage of minerals bound together,a mass composed of a single mineral,a mass of undifferentiated materials,or a mass of solid organic material.
A) compound
B) mineral
C) molecule
D) rock
E) element
Correct Answer:
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Q48: Obsidian is an igneous rock with a
Q49: Approximately 95% of the Earth's crust is
Q50: The three basic rock types are
A)conglomerates,clastics,and evaporative.
B)intrusive,extrusive,and
Q51: Earth's magnetic poles
A)are fixed.
B)are migrating approximately 60
Q52: The plastic layer in the mantle from
Q54: The continuous alteration of Earth materials from
Q55: Which of the following is not a
Q56: An element or combination of elements that
Q57: Coarser grained igneous rocks tend to_ be
Q58: Geomagnetic reversals
A)are rapid events in which the
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