How might the establishment of wildlife refuges and international treaties to protect endangered species actually increase their vulnerability and hasten their extinction?
a) By accentuating their scarcity
b) By driving up their value
c) By making them a “positional good”
d) All of the above
d) All of the above
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Annual and monthly averages of which of the following factors are used in the Köppen system for classifying climates?
A. ocean levels and surface pressure B. population density and agricultural output C. precipitation and stream runoff D. temperature and precipitation
This globe from the atmospheric moisture investigation shows specific humidity, with blue and green being highest. Which part of Africa has the highest specific humidity?
A) In the far north, close to the Mediterranean Sea
B) Along the equator
C) Near the southernmost tip, which is surrounded by ocean on three sides
A tropical cyclone will be strengthened by
A) entrainment of dry air. B) a path over cool water. C) a path over warm water. D) decreased release of latent heat.
In democracies, such as the United States, local and national elections are held as often as every two years. An important implication of this is that ____.
A. solutions to complex problems are often rapidly implemented after elections B. development of policies is left in the hands of experts C. politicians spend much of their time on re-election and deal only with simple, isolated problems D. program administrators often must operate without direction or oversight during and after elections E. resolution of difficult, high-impact problems is the typical focus during and after elections