In the 1970s, sources of CFC pollution in the U.S. included all of the following EXCEPT ________
A) air conditioners
B) refrigerators
C) polystyrene manufacturing plants
D) coal-burning power plants
E) aerosol spray cans
Answer: D
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Why is the air over an open flame always moist?
A. One of the products of combustion is water vapor. B. The hot flame vaporizes the water in the air above the flame. C. Warm air contains more humidity than cold air. D. None of the above is true.
What percent of the Middle East and North Africa is currently Christian?
A) 94% B) 4% C) 14% D) 40% E) 0.4%
This figure depicts the growth of cloud droplets by [INSERT FIGURE 7-2. NO CAPTION]
A) collision-coalescence B) condensation C) the Bergeron process D) entrainment
For the species Panthera pardus, Panthera is the ________ and the pardus is the ________ and ________ can include more than one ________.
Fill in the blank(s) with the appropriate word(s).