Which of the following are not important areas of remaining scientific uncertainty regarding global climate change?
A) Whether or not greenhouse gases trap heat in the atmosphere.
B) Whether or not the planet has warmed on average.
C) Whether or not agriculture in the United States will be adversely affected by climate change.
D) Whether or not concentrations of carbon dioxide have increased in the atmosphere.
Answer: C
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Suppose that in 2020 the average citizen's federal tax bill is $9,372, and total federal spending is $10,824 per person. In 2020, the federal government will have
a. a budget surplus. b. a budget deficit. c. horizontal equity. d. vertical equity.
The many layers of the federal government in the United States:
A. lead to economic inefficiencies because of difficulty aggregating and conveying information. B. enhance government's ability make effective decisions quickly. C. better allow the invisible hand to direct government resources to their best uses. D. improve accountability of government officials, thus leading to more efficient policies.