Which of the following nuclear equations correctly describes alpha emission?
A) U ? Th + He
B) U ? U + He
C) U ? Pu + He
D) U ? He
E) none of the above
A
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If you were on a geology field trip in an area of glacial deposition, how would you distinguish between samples of till and stratified drift?
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Upon what basis were the upper and lower boundaries of the Mesozoic Era defined?
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According to "Hubbert's peak," when will world peak oil production occur?
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