Its just very interesting to how this earth has evolved if you see the
past then you can just get an idea that so many dust particles combined
to form a planet named earth .but you can just think how earth become a
magnet . this just simple science if you think of a magnet of any shape
which attracts metal pieces then we can analyse that it will not
attract those metal pieces at only one place . the metal pieces will be
attracted surroundingly &this is the type of the force which is present
inside the earth &which is named as gravitation.