Question

Which of the following are steps in the mode of occurrence of minerals?

• A. The magma from the mantle comes out carrying the minerals
• B. The magma comes in contact with underground water
• C. Magma settles down in cracks in Earth's crust
• D. Magma cools and solidifies

Answer 1

Answer: (A), (C), (D)

The correct options are
A The magma from the mantle comes out carrying the minerals
C Magma settles down in cracks in Earth's crust
D Magma cools and solidifies

Earth's crust has cracks in them. The magma from the mantle comes out carrying the minerals and settles in these cracks. Eventually, it cools down and solidifies to form igneous or metamorphic rocks, and we find minerals in these cracks.