There are some special characteristics which the earth possess, which makes it to differ from other planets, the characteristics include the following:
1. Earth is the only planet that support the existence of life. Both plants and animals live successfully on planet earth.
2. Planet earth has adequate amount of water on its surface, which makes it a suitable place for life to exist and survive. Also the earth water has remain in the liquid state for a long time, unlike that of other planets that freeze.
3. Planet earth has plate tectonic which ultimately regulates the amount of carbon in the atmosphere in order to keep the surface temperature around that of liquid water.