Plenty of other factors matter as well.
Life only on EarthEarth is currently the only planet known to support life in any form. Because of the existence of millions or billions of other planets, and the fact that we have not - indeed, cannot - inspect all of them means we will never know for sure the exact number that do support life. Many have one or two or some of the necessary conditions for life, but none have so far been discovered (of the few hundred we know) that have all of the necessary factors. Life only on EarthSome good points have been mentioned here but there are literally hundreds of things that make Earth just right for life. Here is a few to add:Yes, but not as we know it.
As far as we currently know, it is Earth. But earth may in fact not be the only planet able to harbor life. We have just begun looking.
The moon has no atmosphere to support life.
The natural phenomenon that helps support current life forms on Earth by trapping heat is known as the greenhouse effect, which involves certain gases in Earth's atmosphere, such as carbon dioxide and methane, trapping heat from the sun. Without the greenhouse effect, Earth's average temperature would be much colder and the planet would not be able to support the diverse range of life forms we see today.
As far as we know, the Earth is the only planet fit enough to support life.
earth
Earth is able to support diversity of life: It has the suitable atmosphere which is made up of different gases. It has a moderate temperature as it is not to far and not to close to the sun. It has the a suitable amount of water covering 2/3 of the Earth's surface.
No, Pluto cannot support life on earth as it is much too far from the sun, or any star. It is too cold. Also, it is mostly made of ice, so if it was hot enough, it would melt apart.
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.
the top soil of earth can support life
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Life. One reason for this is the fact that it has water and a breathable atmosphere.
Mars, Because they found water like flow patterns like found on Earth, Water is an essential ingredient for life.
Mars
Because it is the supply of energy that keeps us alive, and in fact makes the earth able to support life at all
Gravity is essential for life on Earth because it keeps our atmosphere in place, allows water to flow, and enables plants to grow towards the sun. Without gravity, our planet would not be able to support life as we know it.
Earth