crude oil needs to be refinied. why?
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crude oil cannot be used by itself it needs to refined into into its byproducts like petroleum which is used for running cars.
crude oil is heated through a boiler and turned into gas vapours this is then collected in a very large building at different levels(will come in 9th standard).
bestom:
same same
no I am from Delhi
which school?
manav sthali
you
Ryan International School
ok
navi mumbai
bye bro
bye
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