Question

what are the disadvantage for using a sand clock instead of stop watch .​

Answer 1

Answer:

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• The sand clock or hourglass had to be on flat surfaces every time so that it can work properly
• It has a short duration of a clock probably less than one hour
• The main difficulty is one can't see the time from this gadget accurately.

Answer 2

Explanation:

answer is in this pic check it out