Question

why is earth known as a unique planet​

Answer 1

Answer:

Water World

To enable life, this most special of attributes, planet Earth has a number of ideal features. It is unique among planets in our solar system for having water in its liquid form at the surface, in an amount conducive to life evolving.

Answer 2

Answer:

the earth is known as unique planet as life exists on it. the earth is located at optimum distance from the sun. hence it is neither too hot nor too cold. the earth has water which is essential for the survival of all living beings.