Question

please I need the anwer​

Answer 1

Answer:

(1) Cobalt, nickel etc.

(2) copper, aluminum etc.

(3) coal, salt etc.

(4) quartz, mica etc.

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Answer 2

Explanation:

(a) example :- chromium, nickel, molybdenum, vanadium, manganese.

(b) example:- aluminium, copper, lead, nickel, tin, titanium and zinc, and alloys such as brass.

(c) e.g. limestone, mica, coal, gypsum, dolomite, phosphate, salt, manganese, granite etc.

(d) example :- coal, oil, natural gas and uranium.

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