The phenomenon that can sometimes be seen near the upper rim of a setting or rising Sun is called ____
a. sun pillar
b. the glory
c. a corona
d. the green flash
e. the Fata Morgana
ANSWER: d
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The countries with the largest reserves of natural gas are
a. Canada and the United States b. Russia, Iran, and Qatar c. Nigeria and Algeria d. India, Venezuela, and the United States e. Russia, Venezuela, and Canada
An increasing number of states have adopted a federal form of government primarily to
A) grant different ethnicities or nationalities more effective representation. B) encourage the breakup of the superpower alliances. C) govern compact states more effectively. D) deploy scarce resources efficiently. E) meet all of the above needs.
The breakup of Yugoslavia during the 1990s was caused mainly by
A) ethnic cleansing. B) the assassination in Sarajevo of the heir to the throne of Austria-Hungary. C) rivalries among ethnicities. D) NATO. E) espionage by Russian agents.
How many different chemical units make up a nucleotide?
A) 2 B) 3 C) 4 D) 5