Define internal processes and external processes

internal process
INTERNAL PROCESS LEADS TO THE UPLIFTMENT AND SIKING OF THE EARTHS SURFACE AT VARIOUS PLACES

external process 
EXTERNAL PROCESS IS THE CONTINUOUS WEARING DOWN AND REBUILDING OF THE EARTHS SURFACE . THE WEARING AWAY OF THE EARTH SURFACE IS CALLED EROSION . THE SURFACE IS BEING LOWERED BY THE PROCESS OF EROSION AND REBUILT BY THE PROCESS OF DEPOSITION .