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How is nuclear energy generated? State the main advantages and hazards of nuclear energy |
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Answer» When a heavy nucleus of an unstable atom like uranium -235 breaks up an bombardment with low energy neutrons into smaller atoms. It emits a, p and y radiations with large amount of energy. This process is called nuclear fission. 1. It is used to generate electricity. 2. It is used to treat diseases like cancer. 3. The fuel once filled can be used for a long time. Disadvantages: It causes health hazards due to emission of harmful radiations like a, p and y radiations, 1. safe disposable of nuclear wastes is a big handicap. |
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