Which statement is true regarding the solar heating of Earth?
A) The heating of Earth is uniform across all latitudes.
B) Ice absorbs almost all of the solar energy that reaches the poles.
C) At the poles, more incoming solar radiation is absorbed than is reflected.
D) At the equator, more incoming solar radiation is absorbed than is reflected.
D
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A friend produces a Geiger counter to check the local background radiation. It ticks. Another friend, who normally fears most that which is understood least, makes an effort to keep away from the region of the Geiger counter and looks to you for advice. What do you say?
A. The Geiger counter is emitting radiation. B. Wear heavy clothes. C. The Geiger counter is detecting naturally occurring radiation from your body. D. Run away as fast as you can!
Within the past few decades, the global trend has been for people
A) to move out of rural farming areas and into cities. B) living in large cities to move to smaller cities. C) living in cities to raise most of their food. D) living in large cities to recycle most of their waste.
Which of the following is true of the sources of fatty acids?
A) Both animals and plants are rich in saturated fatty acids. B) Both animals and plants are rich in unsaturated fatty acids. C) Animals are rich in saturated fatty acids and plants are rich in unsaturated fatty acids. D) Plants are rich in saturated fatty acids and animals are rich in unsaturated fatty acids.
What are the major classes of Mesozoic mollusks?
A)ammonites, brachiopods, and cephalopods B)gastropods, ammonites, and brachiopods C)bivalves, cephalopods, and ammonites D)trilobites, brachiopods, and ammonites E)gastropods, bivalves, and cephalopods