Compared to a nuclear plant, a coal-fired plant
A) emits much less carbon dioxide.
B) requires much less mining and results in fewer mining deaths.
C) contributes to acid rain, and a nuclear plant does not.
D) releases more than 100 times more radioactivity because of radioactive elements in coal.
D
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The underlying cause of the Rissa, Norway, landslide was ________.
A. freezing and thawing of piles of glacial boulders B. over steepening of slopes of volcanic ash C. too much gypsum in the soil D. dissolution of salt in the soil E. layering of volcanic pyroclasts
A mosque differs from a church because a mosque
A) is not a sanctified place. B) is not a place of worship. C) displays a variety of architectural styles. D) contains relics of the founder. E) is decorated with scenes from the life of the founder.
Although many different species may occupy the same habitat, only a few of these species will ever share the same ecological niche.
a. true b. false
The run-of-river approach to hydropower often involves ________
A) the purchase of state-run dams by major corporations B) dams that are reliable but unsustainable C) impounding water in reservoirs behind concrete dams D) diversion of a portion of a river's flow through pipes E) the most expensive type of dams to build and maintain