Which of the following percentages represents the approximate combined albedo of the Earth and the atmosphere?
A. 50%
B. 30%
C. 10%
D. 4%
Answer: B
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Sulfur-rich aerosols have the net effect of warming Earth’s surface
a. True b. False
Australia is one of the most arid places on earth, with two-thirds of the country receiving less than ________ inches of rainfall annually
A) 30 B) 20 C) 35 D) 40 E) 50
Pioneer farmers settling the grasslands of the American West often built houses of sod, while early settlers of the eastern forest built wooden structures like log cabins. This suggests that building materials
A) are strongly influenced by local resources.
B) are commonly imported over long distances because of local folk culture.
C) are chosen because of the diffusion of popular culture.
D) are a uniform feature of folk culture.
E) are elements of popular culture.
Which of the following is true about the important Bergeron precipitation process?
A) More water vapor can exist in air that is in contact with ice than in air that is in contact with liquid water, regardless of temperature. B) Less water vapor can exist in air that is in contact with ice than in air that is in contact with liquid water, regardless of temperature. C) Less water vapor can exist in air that is in contact with ice than in air that is in contact with liquid water, even if both are at the same temperature. D) More water vapor can exist in air that is in contact with ice than in air that is in contact with liquid water, even if both are at the same temperature.