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 write a letter to the manager Mr vithalbhai seeking permission to allow your group to visit the factory it a date and time suitable to him this is brain list question but use formal letter format then only I will mark you as brain list
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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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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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