posted by Anonymous .
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
Try some of the following links on Uranium for information: