Earth is the only planet currently known to have life.
Earth is unique in having liquid water at its surface.
Currently the earth is the most unique plantet known to man. This is because of me and you on this planet. Life causes it to be a unique planet.
The planet Earth is the only planet which we know to contain life. There may be others, but we have not found them yet. So for now, Earth is unique.
The Earth is unique because it is the only planet known to support life.
earth is supposedly the only planet that can sustain life and has oxygen
Earth is the only planet known by us to support life.
Earth is considered a very special planet, in that it is the only known planet which harbours life.
it has life on it
It is the planet we live on
So far, Earth is the only planet we know of that has intelligent life.
What is unique is that it has beings who ask questions starting, 'what is unique about . . . ?'
The earth has very unique weather when compared to other planets. It is the only planet that experiences the four different seasons due to the planetÕs tilt. The planet earth is the only planet to experience temperate climates.