A deeply frostbitten extremity:
A) is typically bright red and painful.
B) usually heals well with rewarming.
C) requires amputation due to gangrene.
D) is cold, hard, and without sensation.
Answer: D) is cold, hard, and without sensation.
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The reintroduction of wolves into the Yellowstone ecosystem has been considered a success because
A. the wolves are thriving. B. local ranchers fear that wolves will attach cattle. C. ecotourism has decreased. D. biodiversity of the ecosystem has been re-established and sustained. E. global warming has ceased.
What were the two forms of settlement within European colonies?
A) plantations in the middle latitudes; farm-family colonies in the tropics B) livestock ranching in the northern latitudes; orchards in the middle latitudes C) swidden agriculture in the tropics; pastoral nomadism in semi-arid lands D) livestock ranching in highlands; grain farming on the plains E) farm-family colonies in the middle latitudes; plantation colonies in the tropics
At what time during a 24-hour day would a radiation temperature inversion best be developed?
a. at sunset b. near sunrise c. toward the end of the morning d. between 3 and 5 p.m. when the air temperature reaches a maximum e. at noon
How do we know Earth's internal structure?