Question

• Use your brain power !

1) why are all materials not ores ?

2) What is meant by 'metal mineral' and 'non-metal mineral' ?

STD :- 7 th​

Answer 1

Explanation:

• because some of the minerals have unwanted substances.
• Metallic minerals are minerals which contain one or more metallic elements. Nonmetallic minerals are a special group of chemical elements from which no new product can be generated if they are melted