Which of the following sites near a volcano might be relatively less dangerous?
A. a site on a ridge as opposed to a site in a valley
B. a site where rocks have been weakened by hot volcanic fluids
C. a site that is within the shelter provided by the volcano's central crater
D. a site protected by steep slopes of the volcano
E. All of these choices are correct.
Answer: A
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An effective way to measure soil erosion in a region is to measure the
A. Sediment load of rivers B. Distance the dust travels C. Amount lost on crop fields D. All of these are effective ways to measure the loss E. Amount of dust in the air
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A. Calvin cycle B. Hobbes cycle C. Nietzsche cycle D. Locke cycle
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Indicate whether the statement is true or false