Question
Define Geoid and give reason for life on earth.

Answer

  1. The earth is the third nearest planet to the sun.
  2. In size, it is the fifth largest planet.
  3. It is slightly flattened at the poles. That is why its shape is described as a Geoid.
Geoid means earth-like shape. The conditions favourable to support life on earth are:
  1. The earth is neither too hot nor too cold.
  2. It has water and air which is very essential for our survival.
  3. The air has life-supporting gases like oxygen.

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