Which of the following pr°Cesses can generate the convective instability ass°Ciated with severe thunderstorms and tornadoes?
A. forcing a layer of moist air to descend a mountain range
B. creating shadows on the land surface
C. heating the upper portion of an unsaturated layer of air
D. lifting a stable air layer whose surface is humid and whose top is dry
Answer: D
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A basin in which water leaves via evapotranspiration or subsurface gravitational flow instead of reaching the ocean is said to have
A) a disappearing stream. B) sheetflow. C) a closed system. D) internal drainage.
Why are mountains so important?
What will be an ideal response?
A truck that travels twice as fast as another identical truck when braking to a stop will skid
A. four times as far. B. depends on the mass of the cars C. twice as far. D. none of the above
The dunes that form where wind erosion attacks a barren area in a largely vegetated landscape are called
A) transverse dunes. B) barchan dunes. C) parabolic dunes. D) star dunes.