it has air, food and water
Earth is the only planet that has life on it because it is just the right temperature to grow plants, and as you know,that plants give us oxygen to breathe in which is why me and you are alive right now!!If you ask someone why is there no life in Mercury, he/she will say that mercury is way too close to the sun and is too hot to grow any plants. Therefore Earth gets the right amount of heat to grow plants in.A Extra FactEarth is the only planet we've taken a really close look at. For all we know, there are half a dozen other planets and moons in our system supporting life at this very moment.
The term comes from the story of Goldilocks and the Three Bears in which she first tried porridge that was to hot, then too cold, then just the right temperature. Similarly, Earth is the right temperature to support life as we know it. All other other planets in the solar system and most planets in other solar systems are either too hot or too cold. Because the conditions are "just right" - not too hot and not too cold. From the Goldilocks and the three bears story. See related question. Because it is located in an orbit aorund our Sun that gives it the right temperature for liquid water and things to grow. It is not too hot and not to cold. Just right. Of all the planets in our Solar System, only Earth has known life on it. That's because our planet orbits in what scientists call the Goldilocks Zone-the distance from the sun that creates temperatures that are not too hot or too cold to support life. The Earth has a breathable atmosphere, too. Everything is "just right." Scientists are looking around the galaxy for other planets in this zone-we might not be alone!
If Earth combusted? Then it would be either a black hole (mabye not big enouph) or the particles would begin to form a new planet, or it could just disapear.
Unique means 'one of a kind'. From the information gathered about other planets and the universe, Earth is unique, as far as we can tell, in several ways. It is the only planet known (so far) that has life. And not just life, intelligent life. Also, Earth has water. Enough water to sustain life. And, the water has always stayed in a liquid form. Many scientists are wondering how it has never dried up or frozen. Third, is the moon. It is the largest natural satellite by as a fraction of its primary, in the solar system. It stabilizes the planet's movement, and so, prevents drastic climate changes on the earth, making the temperature just right for life over a very long period of time.
An exact figure is never possible. However, one estimate is that: at the end of the year 2009, the world population will be approximately 6,793,200,000 (approaching 7 billion) persons.
There is a planet that can support life, it is just that the earth still has many years to come before we go to another planet
temperature, gravity, atmosphere, and water
Earth
If you're referring to Earth, no. Earth is about 93 million miles away from the sun. Our planet is in the "Goldilock zone" which is just the right temperature to support life. - Jesse Garcia.
On Earth their is water and oxygen which we need to live, but on planet Mars there isn't these things. Also planet Earth just the right distance from the sun so we arent too hot but arent too cold just the right temperature to survive, whereas Mars is too cold.
No. The exosphere is the uppermost part of Earth's atmosphere. Mars is well beyond the exosphere. It is a planet in its own right just as Earth is.
earth
Earth. Its atmosphere is appropriate for all ages.
We live on earth because it is the only planet that can support life. Other planets are too far from the sun whereas others such as mercury are too close to the sun. Earth has just the right stable temperature for human, plant and animal life.
Their are many different reasons for this, it depends on when the planet is formed how close it is to the sun, so our planet just formed at the right place at the right time.
Saturn is just a frozen gas giant planet. They only life that could live there, is the type of life we have never seen on the planet Earth.
Because it has to precipitate so it can support the planet, just like Earth. There's no question about it.