Which of the following statements is true of energy sources in the United States?
A. U.S. oil production, which rose sharply after 1985, began to decline again in 2009.
B. Low natural gas prices plus new air-pollution regulations have made coal uncompetitive as a source of electricity.
C. The United States is not in favor of using nuclear energy as it releases greenhouse gases.
D. The Obama administration approved the construction of the Keystone XL pipeline along the U.S. Gulf Coast.
E. Imports of natural gas are cost-effective as natural gas can be transported by ship efficiently.
Answer: B
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a. using complete counterbalancing. b. avoiding baseline effects. c. promoting symmetric transfer and eliminating asymmetric transfer. d. using a one group pretest-posttest design.
Anti–Vietnam War activists formed __________ interest groups
Fill in the blanks with correct word
For the most part, the delegates to the Constitutional Convention were _____.
A. representative of the population as a whole B. from the best-educated and wealthiest classes C. members of the Anti-Federalist group D. ordinary farmers and merchants E. Native Americans
How has party unity changed in the U.S. Congress since the mid-1980s?
a. It has remained at a moderate level in both Houses of Congress. b. It has increased, but only in the Senate. c. It has increased in both Houses of Congress. d. It has decreased in both Houses of Congress.