Q2 of 18 Page 168

How much portion of the Earth is covered with water at present?

About 70% of Earth surface cover with water and rest is Land.

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1

It is not name of the Earth.

 3

The element which has maximum amount in the Earth is-

 4

The biggest harbor city of Harappan civilization was discovered at which place?

 5

The Cause of tides is-