Afghanistan is overwhelmingly agricultural and pastoral; the country relies on traditional methods and the land produces low yields except for their most successful crop, which is
a. opium.
b. wheat.
c. rice.
d. corn.
e. barley.
A
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What are dachas?
A) large housing projects built in the 1970s and 1980s in Russia B) cottage communities on the fringe of urban areas which cater to wealthier Russians C) authoritarian leaders who dominated politics during pre-1917 Russian Empire D) new suburban shopping malls and housing districts paralleling the North American model E) rapid urban areas developing in the east of Russia
What do most climate change experts predict will happen to Central Asia?
A) It will be hit hard by climate change, leading to melting of glaciers and reduced river flows. B) Because of the region's low density, the problems will be minimal. C) This dry region will benefit from higher overall precipitation. D) The region will move to the forefront of solar energy technology development. E) This region will not be affected by climate change.
How is the oxygen isotope record of marine limestones used to test Milankovitch's theory of the ice ages?
What will be an ideal response?
Differential transmissivity of shortwave insolation and longwave terrestrial radiation by various atmospheric gases is better known as the
A) cloud-albedo forcing B) global warming. C) global dimming. D) greenhouse effect.