there is an error in each line.correct them
thousands of year ago oil lamps
was used by Man.these lamps used
animal fat and vegetable oil to burning.
Before 2000 years ago candles were made
by dipping strands of cotton in animal fat.
invention of moulded candles extends their activity beyond day light hours.
Discovery of petroleum have kerosene as
a fuel.Soon people starts using cast iron oil stoves.
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1.were
2.for burning
3.AGO will not be there
4.HOURS will not be there
5.in place of HAD there will be AND
6.there will be STARTED in place of STARTS
2.for burning
3.AGO will not be there
4.HOURS will not be there
5.in place of HAD there will be AND
6.there will be STARTED in place of STARTS
Answered by
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Answer:
Error. Correction
* Year. * Years
* Was. * we're
* to. * for
* before. * about
* in. * of
* extends. * extended
* activity. * activities
* for. * of
* starts. * started
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