Compared to the size of the earth, the atmosphere is very thin because [INSERT FIGURE 1-3. NO CAPTION]
A) it is highly compressed
B) most of the air molecules float off into space
C) the clouds hold the air close to the surface
D) the sun can't penetrate through the clouds
Answer: A
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Which of the following molecules is most likely to show a dipole-dipole interaction?
A. CH4
B. H-C 
C-H
C. CO2
D. H2S
E. none of the above
Discuss the debate about whether Neanderthals are a separate species from modern humans or a
subspecies. What will be an ideal response?
The Mount Pinatubo eruption in June 1991 affected the atmosphere in all of the following ways except which?
A) The atmospheric albedo increased. B) An increase occurred in the amount of energy absorbed in the atmosphere. C) A worldwide decrease in surface temperatures occurred in the two years after the eruption. D) A decrease in atmospheric aerosols.
Compare the different levels of protection versus use for the different categories of federal lands in the United States
What will be an ideal response?