What set of conditions, working together, will make the atmosphere the most unstable?
A) cooling the surface and warming the air aloft
B) cooling the surface and cooling the air aloft
C) warming the surface and cooling the air aloft
D) warming the surface and warming the air aloft
C
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If the rate at which we produce CO2 were to stop rising, the levels of CO2 in the atmosphere would
A. This cannot be reasonably predicted. B. decrease as CO2 is absorbed by plants, soils, and the oceans. C. eventually level off. D. continue to rise.
Moist air blows across warm water to colder areas inland. What might this produce?
A. fog B. decreased inland temperatures C. a cold air front D. a temperature inversion
Which of the following is incorrect regarding ice-sheet climates?
A) The climate is dominated by dry, frigid air masses. B) There is very little precipitation. C) The only month with an average temperature above freezing corresponds to the summer solstice (June in the Northern Hemisphere, December in the Southern Hemisphere). D) There are vast expanses that never warm above freezing.
When vegetation is burned on a site, it releases the nutrients that were tied up in the biomass.
Answer the following statement true (T) or false (F)