This map shows contours of the water table, the location of four factories (labeled A, B, C, and D), and contaminated (x) and uncontaminated (-) wells. Which way will the contamination flow? 
A. south and southwest, down the contours
B. northwest and southeast, parallel to the contours
C. impossible to tell because the movement of contamination is independent of groundwater
D. north and northeast, up the contours
Answer: A
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A) A
B) B
C) C
D) D
E) E
One common but dangerous gas emitted from volcanoes, which was responsible for many deaths in
Cameroon, is ____________________. Fill in the blank(s) with the appropriate word(s).
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A. rem B. thermal pollution C. nuclear breeder reactor D. U-235 E. gamma radiation F. transuranic waste G. radiation H. alpha radiation I. decommissioning J. moderator K. light-water reactor L. nuclear fusion M. nuclear fission N. heavy-water reactor O. beta radiation P. radioactive half-life
Carbon dioxide is a major factor in the global warming story since it
A. is present in the atmosphere in incredibly large quantity. B. creates its own heat through a poorly understood reaction. C. releases energy as a result of molecular decay. D. absorbs more infrared radiation than it emits.