What must occur for metamorphic rock to become magma?
A) crystallization
B) melting
C) precipitation
D) lithification
Answer: B
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An object is falling at constant speed. The net force is ____
A) upward B) downward C) horizontally directed D) zero
Ethnicity is important because
A) it provides the only stable basis of political states in the modern world. B) it opposes nationalism and globalization. C) it promotes peace and wellbeing in the face of the globalization of culture. D) it reinforces diversity in the face of the globalization of culture. E) it defines citizenship and sovereignty in the political arena.
At a convergent plate boundary,
A. sea floor is produced. B. there are very few earthquakes. C. high mountains may be built during continent-continent collision. D. All of the choices are correct.
The fossil record clearly shows that __________.
Fill in the blank(s) with the appropriate word(s).