Science, asked by sandeephaire5, 4 months ago

sandclock model diagram

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Answered by yashashvirajput6c40
8

Answer is in above attachment☝

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Answered by Anonymous
26

Answer:

An hourglass is a device used to measure the passage of time. It comprises two glass bulbs connected vertically by a narrow neck that allows a regulated flow of a substance from the upper bulb to the lower one

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