Question

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1) In two to three sentences, explain the importance of the following in a nuclear reactor:
-control rods
-containment structure
-a moderator
2)In a few sentences, compare and contrast pressurized water reactors and boiling water reactors.

3)Explain why spent nuclear fuel rods have to be treated as hazardous waste.

4)Fast breeder reactors are seldom used anymore because of safety concerns, as they have a higher potential for explosions. But this explosion hazard does not come from the nuclear fission

Answer 1

What does it come from? Explain your answer in just one or two sentences.