What is the chief cause of radioactivity

Reference no: EM13517085

Some asteroid fragments are large enough to not completely burn up in the atmosphere and they end up on the surface of the Earth. It is possible for such a fragment to be radioactive. What is the chief cause of radioactivity?

Reference no: EM13517085

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What is the chief cause of radioactivity : Some asteroid fragments are large enough to not completely burn up in the atmosphere and they end up on the surface of the Earth. What is the chief cause of radioactivity

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