Which of the following energy resources is renewable?
A) hydropower
B) coal
C) oil
D) uranium
E) plutonium
Answer: A
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Fish survive through cold winters in ice-covered lakes due to water's
A. ability to trap oxygen. B. high specific heat capacity. C. poor heat conductivity. D. bottom temperature above that of freezing.
Certain rock types can be used to determine the locations of past magnetic poles because ____.
a. the Earth's magnetic poles have reversed many times during its history b. the magnetic poles and geographic poles differ slightly c. iron-bearing minerals align themselves in the direction of the current magnetic field when the rock cools below the Curie point d. lava flows in Europe all showed that the continent was once located in the southern hemisphere e. the north magnetic poles of each continent are identical for each geological period
Which layer of the Earth is the thinnest?
A) Crust B) Mantle C) Outer Core D) Inner Core
Which of the following was NOT in forming magmas of the main batholith?
a. subduction beneath western North America b. water that caused partial melting of hot mantle c. partial melting of continental crust d. solidification of magma below the surface e. recent normal faulting along the east side of the batholith