More appropriately: Earth is the only planet in the solar system that is known to have life (as we currently understand it and/or define it) on it.
Two basic qualities that are required for life (again, as we understand it and/or define it) would be water and a temperate climate. Earth, abundant with water, sits in the 'Goldilocks Zone' of the solar system - a place where the temperature is not too not, nor too cold.
Consider that if the 'seeds of life' were scattered through our solar system & the sun was either a bit cooler or a bit warmer, there is a chance that life as we know it could have begun on a different planet... and, in fact, may have at some point earlier in time.
We are still scratching the surface of the origins of life here on our own planet - only a small portion of our oceans have been explored & new species are found all the time. Since we have yet to truly explore another planet, we cannot say with certainty that life is exclusive to the third rock from the sun. Only time will tell.
because of oxygen and life from which life exists
Up to now, Earth is the only planet in our solar system that can sustain life as we know it.
Yes, Earth is the fifth largest planet in our solar system.
earth..The most habitable planet in the Solar System is Earth. As of June 2014, Earth is the only planet that has sustained known living things.
The volume of our solar system's largest planet, Jupiter, is 1320 times the volume of Earth.
Because (as far as we currently know) Earth is the only planet in our solar system that supports life.
Venus
The Earth is a planet in our solar system and the third planet from the sun. The Earth is the only planet within our solar system that can support life.
yes. If you have planet with the same properties as Planet Earth., there will be life on it.
Earth is a planet in the solar system
Earth or any planet where life is possible
The largest planet in the solar system is Jupiter.
Earth is the third closest planet to the sun.
Earth is a planet, not a solar system.
Earth is the strongest planet in the solar system
The Earth is the 3rd planet from the sun. (third rock from the sun, you remember that?)
earth is considered as a planet because it is a part of solar system
No, Earth is the fifth largest planet in our solar system.