Question

of all the eight planets and moons why is life possible only on earth​

Answer 1

Answer:

Presence of water , oxygen , various gases which enables us to live..

Answer 2

Life is possible in earth only because the distance between sun and earth is appropriate (neither very hot nor very cold) it's known as Goldilocks Zone. Water due to which we are all alive is present in earth which could be used by us. There is an atmosphere present that protects us all from harmful rays of sun.