Question

Igneous rocks are called primary rocks because a) All the rocks are formed from the igneous rocks. b) These are important for human beings, c) These rocks are beautiful. d) There is no specific reaso​

Answer 1

Answer:

option a}All the rocks are formed from the igneous rocks

Answer 2

Igneous rocks are called primary rocks because

Answer:

d) There is no specific reason​

Rocks which are formed by solidification of magma are known as primary rocks. Igneous rocks are considered as the primary rocks as these are the rocks which form from the material that comes from below the earth. Igneous rocks are one of the three basic rock types. Other two are sedimentary and metamorphic.