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Which is safer: fission or fusion?

Answer 1

Fusion on several counts. The main downside is that we have not yet produced a practical fusion reactor for everyday use.

Fission reactors present a significant challenge in terms of the disposal of toxic wastes, and can lead to runaway nuclear reactions that can meltdown and release a wide range of heavy radioactive isotopes.

Note that the products of fusion reactions are invariably lighter elements that pose much less threat of environmental pollution; furthermore, although our attempts at fusion reactors have been relatively safe thus far, fusion could also result in catastrophic reactions.

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Answer 2

Connor Anderson

Fusion reactions are considered safer than fission reactions.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.