The wind's speed generally increases with height above the earth's surface because:a
only the lowest layer of air rotates with the earth.
b. air temperature normally decreases with height.
c. wind instruments are not accurate at the earth's surface.
d. friction with the earth's surface slows the air near the ground.
e. air parcels expand and become less dense as they rise above the surface.
d
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In 1950 the global infant mortality was ________ times higher than it is today
A) 1/2 B) 4 C) 10 D) 2 E) 1
In a region where severe thunderstorms with tornadoes are forming, one would not expect toobserve:a
a strong ridge of high pressure over the region. b. a dry tongue of cold air between the 700 and 500 mb levels. c. the polar jet stream above the region. d. moist warm air moving north at about the 850 mb level.
Islands are the dominant landform in the Caribbean
Indicate whether the statement is true or false
Which igneous rock will form through crystallization in a fluid-rich environment with enhanced ion migration?
A) Scoria B) Pegmatite C) Obsidian D) Basalt