Microbursts
A) are an upward surge of warm air.
B) result from dense air that has cooled from the evaporation of water.
C) are most common when skies are clear.
D) have become increasingly dangerous at airports around the United States.
E) all of the above
B
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Spring tides occur when the Moon and Sun are offset, while the Neap tides occur when the Moon and the Sun are aligned.
a. true b. false
In most ecosystems, the original source of energy for the living things in the system is _____.
A) the heterotroph B) glucose C) the primary producer D) the sun
Which of the following is false regarding the tropical rain forest climate?
A) Thunderstorms occur almost daily. B) It does not experience a winter season. C) The annual temperature range is larger than the daily temperature range. D) It is influenced by the ITCZ year-round. E) Water surpluses are enormous.
In circumstances involving millions of emitters of small amounts of pollution who have no strong interest in trading, _________________ will typically offer a better choice for achieving desired reductions of environmental pollution levels.
A. marketable permits B. pollution charges C. enhanced property rights D. ecotourism