The boundary between middle latitude forest and middle latitude grassland is most closely related to the concept of the ________
A) food chain
B) biome
C) food pyramid
D) ecosystem
E) ecotone
Answer: E
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On average, the water equivalent of 10 inches of snow is about ____ inch(es) of water.?
a. ?0.5 b. ?1 c. ?2 d. ?2.5 e. ?5
Which of the following is not part of the climate system?
A) biosphere B) gyrosphere C) geosphere D) hydrosphere E) cryosphere
Suppose a parcel of air has a given temperature, pressure, and density. Which of the following will happen to the air pressure inside the parcel if its size remains the same while its temperature increases?
A. Air pressure will decrease. B. Air pressure will decrease to, but not lower than, 1000 hPa. C. Air pressure will increase. D. Air pressure will remain constant.
Passengers in a high-flying jumbo jet feel their normal weight in flight, while passengers in the orbiting space shuttle do not. This is because passengers in the space shuttle are
A) beyond the main pull of Earth's gravity. B) above Earth's atmosphere. C) without support forces. D) all of the above E) none of the above