Question

____ are elements and compounds that occur naturally in the Earth's crust.

• A. Ore
• B. Minerals
• C. Gangue
• D. Slag

Answer 1

The correct option is B Minerals

Minerals are the elements or compounds that occurs naturally in the Earth's crust. There can be several minerals containing the same metal. For example, bauxite $\left(A{l}_2{O}_3.2H_{2}O\right)$, cryolite $\left(N{a}_{3}Al{F}_6\right)$ and china clay ($A{l}_2{O}_3.2Si{O}_2.2H_{2}O)$ are some of the minerals containing aluminium.