Which events are caused by the refraction of light through ice crystals?
a. rainbows and halos
b. halos and the green flash
c. halos and sundogs
d. sundogs and sun pillars
e. mirages and sundogs
ANSWER: c
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What is glasnost?
A) the Russian word for railroad B) a USSR policy of greater openness during the 1980s that encouraged several Soviet republics to demand independence C) a policy of education improvement, in the last days of the former Soviet Union D) improvement of the Russian environment E) planned economic restructuring, an early move toward a freer market
The boundaries of subunits or smaller cratons within the shield are based on topographic expression of different rock types
Indicate whether the statement is true or false
Which country is Africa's leading trade partner?
a. the United States b. Russia c. India d. China e. Germany
"N" on the globe represents the northern hemisphere; "S" on the globe represents the southern hemisphere; ITC stands for the Intertropical Convergence Zone. Where will the ITC shift in July?
A. S B. N C. ITC will stay over the equator.