Question

why primary rocks or basic rocks are called igneous rocks?​

Answer 1

Answer:

Of the three principal rock types (igneous, sedimentary, and metamorphic), igneous rocks can be thought of as "primary" rocks because they crystallize from a liquid. Sedimentary and metamorphic rocks, which we will study later, may be thought of as derivative rocks.

Answer 2

Answer:

Ignore rocks are called from cooling if molten magma / lava. All other rocks are drived from them. because they from the basis of formation of other types of rocks, igneous rocks are known as the primary rocks.