A mineral is termed as 'ore', if – McqOptions

MCQOPTIONS

1.	A mineral is termed as 'ore', if
A.	a metal can be economically extracted from it.
B.	it contains 40% metal.
C.	the metal present in it is costly.
D.	all (a), (b) and (c).
Answer» B. it contains 40% metal.

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