What is the main reason why the age of oldest rocks can vary from one part of a continent to another?
A. Large parts of the continent are subducted deep within the mantle.
B. Older rocks are commonly remelted over huge regions.
C. Older rocks have been uplifted and eroded away.
D. Parts of the continent have been added by the accretion of tectonic terranes.
Answer: D
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In what year did Köppen first publish his classification system?
A) 1492 B) 1760 C) 1850 D) 1918 E) 1971
If an unsaturated air parcel with a temperature of 20oC rises, forms a precipitating cloud, then returns to its original altitude,
A) the parcel's final temperature will be different than 20 oC B) the parcel's final temperature will be exactly 20 oC C) the parcel will never return to the surface D) the parcel will continue rising until it reaches the tropopause
Consider how easily halite (NaCl) dissolves in water. Why does quartz not dissolve readily in water?
What will be an ideal response?
Which of the following is the oxidizing agent in the conversion of a saturated fatty acid to an unsaturated fatty acid?
A) FADH2 B) FADPH2 C) NADH D) NADPH