In terms of atmospheric change, which of the following is TRUE?
A) Change has never occurred.
B) Humans are adding impurities to the atmosphere at a rate previously unknown.
C) The ozone hole problem is now solved.
D) The present era is the first time there has ever been climate change.
E) International treaties have been able to halt climate change.
Answer: B
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The stages associated with continental rifting are, in order from earliest to latest,
A) narrow ocean basin, continental rift, uplift, wide ocean basin. B) narrow ocean basin, wide ocean basin, continental rift, uplift. C) uplift, wide ocean basin, narrow ocean basin, continental rift. D) wide ocean basin, narrow ocean basin, uplift, continental rift. E) uplift, continental rift, narrow ocean basin, wide ocean basin.
The system found in some Asian countries where the government does not own much outright, but it does plan and regulate the economy, is called
A) chaebol. B) positive externalities. C) negative externalities. D) state-directed capitalism. E) dictatorship.
A plane takes off from City A headed for City B, located directly to the north. The pilot flies directly north following a straight line, but arrives at a city some distance to the west of City B. What can be said of the airplane?
A) It probably has a broken compass. B) It was blown off course by upper atmospheric winds. C) It was flying in the Southern Hemisphere. D) It was flying in the Northern Hemisphere.
Which optical process is most important in causing the corona?
A) absorption B) refraction C) dispersion D) diffraction E) reflection