A 22-year-old hiker has been found on a cold night after getting lost. The rescuers suspect the onset of hypothermia and choose to keep the patient walking after giving him some food and water. This would be an example of:
A. active rewarming.
B. passive rewarming.
C. conductive rewarming.
D. evaporative rewarming.
Answer: B. passive rewarming.
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Glacial striations are
A. carved by rock fragments frozen into the ice. B. only found in till deposits. C. used to show the rate and direction of ice flow. D. All of the choices are correct.
The Mercator map projection is actually a(n) ____ projection that has been mathematically adjusted
a. conical b. interrupted c. cylindrical d. equal-area e. planar
Heavy rains and mudslides cause a river to change course, isolating two groups of lizards from one another. If they remain isolated for a long period of time, ________
A) one or both groups will probably become invasive species B) both groups will probably become native species C) one or both groups will probably emigrate D) one group will probably become an endemic species E) the groups will probably diverge genetically, and speciation may occur
The earliest organic reefs are known from the Ordovician Period
a. True b. False