Question

Explanation abou and examples:

Rock Types

 Igneous
 Sedimentary
 Metamorphic

Answer 1

i. Igneous:

These rocks are formed through the cooling and solidification of lava or magma on or below the surface.

Example: granite, pegmatite, diorite

ii. Sedimentary:

These rocks are formed due to deposition of particles from other rocks or plant and animal remains. The particles get pressed and cemented together.

Example: sandstone and limestone

iii. Metamorphic:

These rocks are formed from other existing rocks (igneous and sedimentary) through heat, pressure or chemical alteration/changes.

Example: anthracite, marble, slate