Question

It took about for the Earth's surface to cool down and for water bodies to be formed on it?
A.\[125\] crore years
B.\[100\] crore years
C.\[80\] crore years
D.\[75\] crore years

Answer 1

Hint:We will discuss Our planet Earth:The earth is the fifth largest planet and the third nearest to the sun. It is spherical in shape.It is slightly flattened at the poles and bulging at the equator. This shape is called a geoid. Our earth is a unique planet because it is the only planet in the solar system where life is known to exist.

Complete answer:
Let us discuss more.The earth has all the favourable conditions required for the existence of life.Moderate temperature: The amount of heat received by a planet depends upon its distance from the sun. The earth is at a location which is not too close neither too far from the ball of fire ,sun. Thus it is neither too hot like Mercury nor too cold like Neptune. The moderate temperature conditions on earth are favourable for plant and animal life.Suitable atmosphere: The earth is surrounded and animals are CO.by a blanket of air called the atmosphere. Our atmosphere has gases such as nitrogen, oxygen, carbon dioxide and ozone, all of which are necessary for plant and animal life. The atmosphere also acts as a protective layer against the sun's harmful rays.Presence of water:Due To favourable temperature water can exist on earth in all three forms solid, liquid and gas.

Hence, the correct answer is option (C).

Note:A blanket of air on the earth surrounded plants and animals and it is called the atmosphere. This blanket has gases such as nitrogen, oxygen, carbon dioxide and ozone. These gases are necessary for plant and animal life.