Question

why wall clocks have quartz on it
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Answer 1

HELLO MATE

Quartz is a metal it manage second hand and minute hand and hour hand as well as makes it revolve in a perfect direction.

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Answer 2

Explanation:

Hello friends,

Quartz is a hard mineral made from silica found widely in igneous and metamorphic rocks and typically occuring as colourless or white hexagonal prisms. It is often coloured by impurities(such as amethyst, citrine and cairngorm)