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Coal and Petroleum — Science STD 8 — Question

Gujarat BoardEnglish MediumSTD 8ScienceCoal and Petroleum2 Marks
Question
Petroleum is called ‘black gold’.
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Answer

$-$Many useful substances are obtained from petroleum.
$-$These are used in the manufacture of detergents, fibres, lubricatings, colours.
$-$Due to its great commercial importance, Petroleum, the black liquid, is called ‘black Bold’.

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