Disposal of radioactive waste is a major concern in nuclear power production. Which method of disposal is least dangerous?

Containing radioactive waste in secure containers and placing it in an isolated location limits the chance that people or ecosystems will be exposed. Pouring it into water or spreading it across many places contaminates environments, while releasing it into the atmosphere can expose living things over a wide area. Therefore, encasing and isolating the waste is the least dangerous choice listed.

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