There are numerous planets,stars and other heavenly bodies in the universe but earth has a distinctive feature that is,it has favourable condition for life.It is only place to support life is the universe as known to humans till date.There are different features in earth which make it a livable place;air,water,optimum distance from sun,fertile soil,etc.It is situated at a distance of 150,000,000 km from the sun and suitably warm for the living beings.Not only habitat,but also everything that the living beings need for their survival,is available in the earth.Earth is a combination of biosphere,lithosphere,hydrosphere and atmosphere in which different creatures live.All of these different habitats and creatures works.