Differing by a letter these 2 rivers both rise in Switzerland; one is about 830 miles long & the other more than 500

If you are looking for the Differing by a letter these 2 rivers both rise in Switzerland; one is about 830 miles long & the other more than 500 answer and solution then you have come to the right place. This question aired today (February 20 2023) in the popular Jeopardy! TV Show. If you would like to know the answer then continue reading below:

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