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16 April, 19:09

A radioactive cloud may contain Iodine-131, which has a half-life of 8 days. If the waste must decay to a concentration of less than 0.1% to be considered safe, it will take approximately ___ days to reach safe levels.

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  1. 16 April, 21:48
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    The correct answer for the question that is being presented above is this one: " 4 days." A radioactive cloud may contain Iodine-131, which has a half-life of 8 days. If the waste must decay to a concentration of less than 0.1% to be considered safe, it will take approximately 4 days to reach safe levels.
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