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which is known as the worst enemy of ozone?what is I^131?
The main cause of ozone depletion is emissions from man-made sources of halocarbons, most notably chlorofluorocarbons (CFCs).

Radioactive Iodine I-131 (also called Radioiodine I-131) therapy is a treatment for an overactive thyroid, a condition called hyperthyroidism. Hyperthyroidism can be caused by Graves' disease, in which the entire thyroid gland is overactive, or by nodules within the gland which are locally overactive in producing too much thyroid hormone.
 Hope you meant this about 1-131.


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