On average, Earth's surface albedo is about ________.
A. 2 percent
B. 31 percent
C. 52 percent
D. 7 percent
Answer: B
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What type of rock is shown in this photograph from the Investigation?
A. granite B. metamorphic rocks C. volcanic rocks, probably basalt D. sedimentary rocks
The Coriolis effect is important only for motions that:
A) do not involve a pressure gradient. B) cover long distances. C) are near the earth's surface. D) cover short distances. E) are slow.
The UN's 1997 Convention on the Non-Navigational Uses of International Watercourses addresses issues with ________ that are shared among more than one country
A) seas B) rivers C) oceans D) farms E) all the above
Some parts of Earth appear unaffected when acid rain falls. This is because they ________
A) channel the runoff into large rivers B) have few cities and acid rain tends not to affect natural settings C) have alkaline soils D) are covered with types of marble E) are outside of the United States