Because of friction, surface winds move ____ winds aloft with the same pressure gradient
a. more slowly than
b. at the same speed as
c. faster than
d. twice as fast as
e. at half the speed as
ANSWER: a
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Bond energies increase in going from C-N (lowest) to C-O to C-F (highest). Explain this trend based upon the atomic sizes of these atoms as deduced from their positions in the periodic table.
A. In going from nitrogen to oxygen to fluorine, the atoms get smaller. This means a greater nuclear charge, which translates into stronger chemical bonds. B. In going from nitrogen to oxygen to fluorine, the atoms get larger. This means a greater nuclear charge, which translates into stronger chemical bonds. C. In going from nitrogen to oxygen to fluorine, the atoms get smaller. This means that the bonding atoms are closer together, which translates into a greater bond energy. D. In going from nitrogen to oxygen to fluorine, the atoms get larger. This means that the bonding atoms are farther apart, which translates into a greater bond energy.
Native Americans/First Nations lived
A) Only in small temporary settlements. B) Only in permanent settlements, villages and cities. C) Some groups lived in migratory groups and others in villages and cities. D) Generally groups lived large cities comparable in size to the largest European cities.
In order for a human population to be sustainable, its actual numbers must be ________
A) above the carrying capacity B) above its biocapacity C) below its ecological footprint D) above its ecological footprint E) below the carrying capacity
Air pollution emitted from industrial areas, especially products of combustion, such as oxides of sulfur and nitrogen, can be carried many kilometers downwind. Sometimes these particles and gases slowly settle to the ground in the dry form of ____
a. acid fog b. acid rain c. acid precipitation d. dry deposition e. wet deposition