Final answer:
Radioactive isotopes have diverse uses in medicine and commercial applications, but they are not commonly employed for food preservation.
Explanation:
Radioactive isotopes have various uses, including medical imaging for diagnosing organ malfunctions and therapeutic purposes such as killing cancerous cells. They are also utilized commercially for tasks like measuring film thickness and controlling pests by sterilizing male flies. However, food preservation is not a typical application of radioisotopes.
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