Livings beyond earth

1. Among the unsolved,''possibility of life beyond earth'' is on top of list.With our all space programs since 1960,we are able to know the presence of ice in some planets.Here comes an argument,whether earth is made for livings or life started on earth due to presence of vital elements on earth.Humanbody is made of calcium,magnasium,iron and manymore elements which are available on earth.There is no such element in human body.which is not present on earth.The basic of life Oxygen,Water is also supplied by earth to humanbody.It is unlike that an element found in humanbody is not in earth.