you and your friends are doing a project on how glass is made you wish to visit the glass factory which is close to your town right a letter to the manager Mr vithal bhai seeking permission to allow your group to visit the factory at a date and time suitable to him please friend this is Brain list question I will mark you as brain list only if you will use formal letter format for writing the letter
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you are correct but Believe it or not, glass is made from liquid sand. You can make glass by heating ordinary sand (which is mostly made of silicon dioxide) until it melts and turns into a liquid. You won't find that happening on your local beach: sand melts at the incredibly high temperature of 1700°C (3090°F).
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Explanation:
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