Regarding the diurnal temperature range, the minimum temperature is usually
A) shortly after sunset.
B) about 10 p.m.
C) about midnight.
D) about sunrise.
E) two hours after sunrise.
Question 2The year without a summer, 1816, was caused by
A) El Nio.
B) La Nia.
C) a volcanic eruption.
D) changes in the output of the Sun.
E) none of the above
Question 3After the eruption of Mount St. Helens, Spokane, Washington,
A) saw its diurnal temperature cycle flatten out.
B) saw its daytime temperatures increase sharply.
C) saw its nighttime temperatures decrease sharply.
D) saw a marked decrease in its outgoing amount of terrestrial radiation.
E) did not have any significant changes in temperature.
Question 4The eruption of Mount St. Helens
A) caused a major decrease in the global temperature in 1980.
B) caused a major increase in the global temperature in 1980.
C) was triggered by El Nio.
D) saw most of the ejected gases and dust reach the stratosphere.
E) none of the above
Question 5El Nio
A) did not occur in the 1990s.
B) causes warmer waters in the eastern Pacific Ocean.
C) leads to overall global cooling.
D) has little impact upon weather in the Northern Hemisphere.
E) none of the above
Question 6The sulfur dioxide from a violent volcanic eruption does all of the following, except
A) remain in the atmosphere for at least a year.
B) stay in the middle to upper layers of the troposphere.
C) transform into sulfuric acid.
D) increase the amount of sunlight reflected back to space.
E) help cool the atmosphere.
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