No, it is not for only humans. It existed long before humans appeared and will exist long after we are gone; in that time, it has, is and will support hundreds of millions of other types of organism.
They are currently trying to build a vessel that will make it capable for humans to live in severe environments but yes Earth is the only planet where humans can live without the use of some form of protection or an artificial atmosphere.
But who knows maybe they will find a planet in the future that will be just as habitable as Earth is.
Yes, if the needed of people is sustain enough
Yes humans can live in earth because earth has oxygen.
No, the temperatures are too hot and there is no source of food.
In science... anything is possible.
Given the immense number of planets in the Universe it would be unsupportable to state that "only the Earth" can support human life. In this solar system no other planet has surface conditions which would allow exposed humans to live. This does not preclude humans living in contained communities or in a terraformed environment.
we can live on earth because it is not to hot or cold
If we did not live on the outer layer of the Earth also known as the crust we would burn to death because it is so hot down below because the core of the Earth is so hot
We live on Earth. The only planet that has been proven to sustain carbon-based life.
Yes, there is "The planet is called Goldilocks" this planet has water and the write kind of air for humans to live in but there are no hmans living on it so People can go to it in a spaceship with out an spacesuit.
It is the only planet with the recourses necessary for us to survive.
Because earth is the only planet that has oxygen, and earth has the most water on it, which are both necessary for humans to live.
Humans live on the lithosphere, or the crust, of the earth.
we live on the crust of the whole earth
Humans live in all four of Earth's Hemispheres.
Most humans live of the crust of the Earth.
== == If a giant meteoroid hit earth humans would not live any more or animals earth will die.
Homosapiens are Humans, and they live on Earth
oxygen
Humans can live on it
whales can only be found in oceans because there is no place left for humans on the earth, then where will the whales live...
Yes. The human species is only known to live on Terra (Earth). Sometime in the future humankind may choose to live on a different planet, but so far we have not found another Earth-like planet that we could successfully live on.