Answer:
The process of differentiation refers to the separation of Earth into the core, mantle, and crust.
Step-by-step explanation:
- The Earth was a burning sphere around 4.5 billion years ago. Later, through a process called 'Runaway Accretion', the heavier and larger debris clustered together at the center of this burning sphere to form the inner core of the Earth.
- The outer layer of the Earth was formed due to the cooling down of the Earth's surface by the rains that poured down for millions of years continuously.
- The middle layer of the Earth, known as the mantle, constituted of the residual semi-solid material that flows between the uppermost and the lowermost layer.
- This entire process of separation of planetary materials and the formation of the layers of Earth is called 'Differentiation'.