GENERAL KNOWLEDGE

GK

SOLAR SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Primarily why was differentiation possible on Early Earth but not today?
A
Old rocks floated
B
Different laws of physics
C
Change in the size of the Earth
D
Molten state (Earth was melted)
Explanation: 

Detailed explanation-1: -Perhaps the most important event for Earth’s surface, however, was the formation of the earliest crust by partial melting of the interior. This chemical separation by partial melting and outgassing of volatiles is termed differentiation.

Detailed explanation-2: -About 4.6 billion years ago, Earth formed from a hot cloud of dust orbiting a blazing sun. As the planet cooled, dense elements became concentrated in the core of the planet, while lighter elements formed the mantle.

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