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NEETZoologyEvolution

How did the early Earth's atmosphere change over time?

Options

  1. AIt became more acidic
  2. BIt became more oxygen-rich
  3. CIt remained unchanged
  4. DIt turned into a liquid

Correct answer

B. It became more oxygen-rich

Step-by-step solution

What we see today is an object whose emitted light started its journey millions of year back and from trillions of kilometres away and reaching our eyes now. However, when we see objects in our immediate surroundings we see them instantly and hence in the present time. Therefore, when we see stars we apparently are peeping into the past. The gases condensed under gravitation and formed the galaxies of the present day universe. In the solar system of the milky way galaxy, earth was supposed to have been formed about

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