Structural damage from seismic vibrations would be worse ________
A) where the focus is about 800 kilometers below the surface
B) where older buildings were built on a thick layer of sediment
C) where buildings are made mostly of wood
D) where buildings were built to code on solid rock
B
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What percentage of the 25 key nonrenewable mineral resources must the US import?
A. All or nearly all B. Little to none C. 1/4 to 1/2 D. 1/2 to 3/4
During the last ice age about 21,000 years ago, the ice would have taken up a volume equal to what depth of the oceans?
A) 5-10 meters B) 40-55 meters C) 70-82 meters D) 100-120 meters
Which region is largely free from environmental problems?
A) Europe B) North Africa and the Middle East C) Sub-Saharan Africa D) South Asia (Indian Subcontinent) E) All of the above have major environmental problems.
There is uncertainty among scientists over whether projected atmospheric warming will increase the frequency and intensity of tropical storms and hurricanes. In 2010, a World Meteorological Organization panel of experts concluded that projected atmospheric warming is likely to lead to ____ hurricanes and typhoons.
A. fewer and weaker B. more but weaker C. fewer but stronger D. more and stronger E. no change in the strength or frequency of