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April 19, 2014

Homework Help: Physical science

Posted by Anonymous on Thursday, October 27, 2011 at 10:44am.

Why can't naturally occuring uranium be used in a nuclear power plant?

A. Naturally occurring uranium decays too rapidly into thorium.

B. The temperature of the uranium is too low.

C. A sustainable chain reaction requires higher concentrations of U235 than naturally occuring U contains

D. U235 undergoes fission but the U238 absorbs the extra neutrons that are produced

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