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Collect information about working of natural geysers

and prepare a report . And tell all about natural geysers in your "OWN" words please
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thanks to you i gained new rank .................... :]


the earlier manufactured mirrors were the pieces of polished stones. parabolic mirrors were described and studied in classical antiquity by the mathematician diodes in his work on burning mirrors. In china people began making mirrors with the use of silver mercury amalgams as early as 500AD. In 16th century, venice, a big city formed for its glass making expertise, became a centre of mirror production using this new technique. 
3 3 3
i want a long answer
hmm i will try
please write how it works etc
and it should be of more than 230 words
please write the answer puja plzzzzzzzzzzz
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