He has created the skies without any pillars and supports that you can see, and has placed firm mountains upon the earth, lest it sway with you, and He has dispersed therein all kinds of creatures. And We send down water from the sky, and thus We cause plants of every goodly kind to grow therein. (Mountains resulted millions of years ago as the earth was cooling off and the earth crust was shrinking (16:15), (78:7)).