Question

Q.2) Answer in one word :
1) One the basis of scientific research, the earth came into being around.
Ans.
net where life is known to exist is the ​

Answer 1

On the basis of scientific research, the Earth came into being around  

4.54 billion years ago.

Explanation:

• Earth formed around 4.54 billion years ago, approximately one-third the age of the universe, by accretion from the solar nebula.

• When the solar system settled into its current layout about 4.5 billion years ago, Earth formed when gravity pulled swirling gas and dust in, to become the third planet from the Sun.

• Volcanic release probably created the primitive atmosphere and then the oceans, but early atmosphere contained almost no oxygen.

• Like its fellow terrestrial planets, Earth has a central core and a solid crust.