This video provides you with a basic explanation of physical weathering processes.
No copy-right infringement is intended.
Videos used:
Alps in 4k: https://www.youtube.com/watch?v=dZY-i-lR6O8
Water freezing: https://www.youtube.com/watch?v=xFRu2mt6SgQ
American south-west: https://www.youtube.com/watch?v=cwXqzfzTguI
