CTET PAPER II 2019 · PYQ · Geography / Minerals · easy
Which of the following is not true for minerals?
A.They are naturally occuring substances.
B.They have a definite chemical composition.
C.They are formed in different types of geological environments.
D.All minerals are non-metallic.✓ Correct
Explanation
Not all minerals are non-metallic. Minerals are broadly classified into metallic (like iron, copper, gold) and non-metallic (like mica, gypsum, salt). The other statements are all true characteristics of minerals.
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