Nuclear wastes is waste that contains radioactive material. Radioactive material is normally a by product of nuclear power generation. Radioactive waste is regulated by government agencies in order to protect human health and the environment. Radioactivity naturally decays over time, so radioactive waste has to be isolated and confined in appropriate disposal facilities for a sufficient period until it no longer poses a threat. Which of the following statements can be inferred from the paragraph?

Nuclear wastes is waste that contains radioactive material. Radioactive material is normally a by product of nuclear power generation. Radioactive waste is regulated by government agencies in order to protect human health and the environment. Radioactivity naturally decays over time, so radioactive waste has to be isolated and confined in appropriate disposal facilities for a sufficient period until it no longer poses a threat. Which of the following statements can be inferred from the paragraph? Correct Answer Radioactive material is extremely hazardous to humans.

Option 1 is unrelated to the theme of the passage, and is an incorrect assumption. Hence, it is wrong. Option 2 is also scientifically wrong. Option 3 is correct as it is mentioned that the waste is 'regulated by government agencies', and that it has to be isolated, which means that it is hazardous to humans. Option 4 cannot be inferred, as only the methods are mentioned, and we cannot judge the difficulty of the methods mentioned.

Hence, option 3 is correct.

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