Obsidian,shown below,____________.
A) is volcanic glass
B) possesses conchoidal fracture
C) typically is felsic in composition
D) All of the above are correct.
Correct Answer:
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Q10: When magma crystallizes,_ are formed.
A)intrusive igneous rocks
B)extrusive
Q40: Viscosity depends on _.
A)temperature
B)volatile content
C)silica content
D)All of
Q41: A famous example of hot-spot volcanism occurs
Q42: A continental volcanic arc occurs at _.
A)the
Q43: Consult the figure below.Large igneous provinces can
Q44: Vesicles are a term used to describe
Q46: A volcano emits ash,which falls from the
Q48: Large igneous provinces are formed by _,which
Q49: Pillow basalts,shown below,attain their distinctive blob-like shapes
Q50: Mt.Kilimanjaro and the Basin and Range Province
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