Question

Select the statement(s) that is/are true in the context of a mineral.

• A. A mineral is heterogeneous because it shows uniform properties throughout.
• B. Minerals are naturally occurring substances and are not man-made or manufactured in a factory.
• C. Minerals have definite internal structure as the arrangement of chemical elements in a mineral are fixed.
• D. A mineral is homogeneous because it has uniform properties throughout.

Answer 1

Answer: (B), (C), (D)

The correct options are
B Minerals are naturally occurring substances and are not man-made or manufactured in a factory.
C Minerals have definite internal structure as the arrangement of chemical elements in a mineral are fixed.
D A mineral is homogeneous because it has uniform properties throughout.

Geologists define minerals as homogeneous, naturally occurring substances with a definite internal structure. A mineral is homogeneous because it shows uniform properties throughout. It is also a naturally occurring substance which means a mineral cannot be man-made or manufactured in a factory. It has a definite internal structure, which means the arrangement of chemical elements in a mineral is definite or fixed.