The polar jet stream removes air above the surface cyclone and supplies air to the surface anticyclone
a. True
b. False
ANSWER: True
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Acid mine drainage results from the oxidation and dissolution of coal and ________ ores
Fill in the blank(s) with correct word
A parcel of air at 25°C is completely saturated with a vapor pressure of 30 mb. Cloud formation removes water vapor from the atmosphere resulting in a new vapor pressure of 15 mb at the same temperature of 25°C. What is the relative humidity of the parcel of air at 25°C and 15 mb?
A. 15% B. 15 mb C. 50% D. 50 mb
The exposed bedrock in the background of the figure below, to the right, formed as
A) isostatic rebound caused the land to extend upward.
B) particularly resistant rock and/or thin ice left the rock above the ice surface.
C) a mantle hot spot melted the glacier in this localized area.
D) local wind-blown deposition concentrated in this area of the glacier.
At present, what percentage of the world's people live in cities?
A. 10 B. 25 C. 50 D. 75