The oceanic tides rise and fall in a rhythmic cycle that takes place roughly once every ________ hours

A) 4
B) 6
C) 12
D) 18
E) 24


Answer: C

Environmental & Atmospheric Sciences

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Warm air rises because faster moving molecules tend to move to regions of less

A. density. B. pressure. C. both of these D. none of the above

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If a geographer wanted to use a geographic information system (GIS) to study soil contamination and determined that only the areas within 1.5 kilometers of a toxic waste dump needed to be considered and mapped, he/she would most likely choose. Which type of GIS function?

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What is an earthquake?

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