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
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Upon ingestion, grain alcohol, C2H6O, is metabolized into acetaldehyde, C2H4O, which is a toxic substance causing headaches as well as joint pains typical of a "hangover." Is the grain alcohol oxidized or reduced as it transforms into acetaldehyde?
A. The grain alcohol is oxidized. B. The grain alcohol is reduced. C. Some of the grain alcohol is oxidized and some is reduced to other products. D. The grain alcohol is neither oxidized nor reduced.
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
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?
A) Buffering B) Kriging C) Area calculation D) Point-pattern analysis
What is an earthquake?
A. a release of energy B. a fault C. a seismic wave