On a weather map of the Northern Hemisphere, the trade winds would be observed?
a. ?north of the polar front.
b. ?between the polar front and the subtropical highs.
c. ?south of the subtropical highs.
d. ?between the subpolar lows and the subtropical highs.
e. ?between the subpolar lows and the tropical highs.
ANSWER: c
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Which of the following is a pull factor for urban growth?
A. High unemployment in cities B. Better access to education at big universities C. Unemployment in farming communities D. Jobs in rural manufacturing E. None of these is a pull factor for urban growth
Greater involvement by the federal government in the management of MSW disposal started with the Resource and Conservation and Recovery Act about
A) 40 years ago and is currently the responsibility of the EPA. B) 100 years ago and has been under the authority of the FDA. C) 15 years ago and is largely supervised by the Department of Agriculture. D) 60 years ago and is controlled by the Bureau of Land Management.
Which of the following is the difference between lysine and ornithine?
A) Lysine has one less CH2 group than does ornithine. B) Lysine has one more CH2 group than does ornithine. C) The side chain in ornithine is cyclic but that in lysine is linear. D) The side chain in ornithine is linear but that in lysine is cyclic.
Most of the fresh water on Earth is found in:
a. glacial ice. b. lakes. c. the atmosphere. d. rivers.