Q. 1

Do you think description of blue planet is accurate?

Answer :

Earth is referred to as a blue planet because of various reasons. Blue signifies the colour which is predominant when Earth is viewed from space.

Yes, its description as blue is correct because of the following reasons –

1) More than 70% of Earth is constituted by water.

2) The life in water is way more than that found on land.

3) Earth is the only planet to have water

4) Life evolved first in oceans/ seas.

5) It is essential for life to sustain on Earth.

Thus, due to the criticality of water and scattering effects, the Earth looks like a Blue dot and justifies its description.

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