Smarty Pants Quiz
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Who invented the floating ballcock, an improved tank-filling mechanism still used in toilets today?
Ismail al-Jazari
Matilda Rudd
Thomas Crapper
Geoff Hill
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The English businessman Thomas Crapper developed the ballcock, which prevents water overflow and backflow in toilets.
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09
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00
Who invented the floating ballcock, an improved tank-filling mechanism still used in toilets today?
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