Consider light energy that is momentarily absorbed in glass and then reemitted. Relative to the absorbed light, the frequency of the reemitted light is
A) considerably less.
B) slightly less.
C) the same.
D) slightly more.
E) considerably more.
C
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If China needed to import just one-fifth of the grain it uses, it would take up how much of the grain exported by all the countries of the world?
A. 5% B. 15% C. 25% D. 35% E. 50%
Which types of purchases have decline as a share of spending in the U.S.?
A) home purchases B) food and clothing C) medical care D) holiday shopping E) none of the above
With the cementation of loose particles sediment becomes ________.
A. lithified B. molten C. igneous D. basalt E. metamorphic
The intensity of an earthquake ________. Choose the only description that does not fit.
A. is described using the Mercalli scale B. is useful for assessing heavily populated areas C. is its effect on people and buildings D. depends on the underlying geologic material E. is an objective measurement