When did earth originate?
Answers
Answer:
4.54 billion years ago
Earth formed around 4.54 billion years ago, approximately one-third the age of the universe, by accretion from the solar nebula. Volcanic outgassing probably created the primordial atmosphere and then the ocean, but the early atmosphere contained almost no oxygen.
Answer:
(1) Earth origlnated about 4.6 billion years ago as a part or the solar system.
(2) When it was formed, it was a rotating cloud of hot gases and cosmic dust. It was then appearing like a nebula.
(3) Later the condensation and cooling started which resulted in stratification.
(4) Heavier elements like nickel and iron settled to the core. Lighter elements like heliun, hydrogen, nitrogen, oxygen, carbon, etc. remained on the surface and they formed the primitive atmosphere.
(5) This atmosphere of the earth was of a reducing type, devoid or free oxygen and very hot.