Question

why moon does not falls on earth surface

Answer 1

moon does not fall on the surface of earth becoz while revolution of moon around the earth its has centripetal force and centrifugal force acting on it soo it revelos around the earth in its own axis.                                                                                                                                                                                                  hope this answer helped u  :-)                 

Answer 2

The energy of Sun has bound the whole universe so Moon doesn't fall on Earth's surface.