A C D B A D C B are the answers
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The spent nuclear fuel is easy and safe to dispose of is not a potential problem of using more nuclear energy.
This isn’t a potential problem because the disposal is straightforward and can be done safely almost anywhere. However, final disposal would be best if done in a deep geological area.
I think it is c. They both originated in the Indus River Valley.
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is there english transalation?
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