Function of Mountains:
In Quran, Allah Almighty says: “Did We not make the earth a resting place? And the mountains as stakes?” (78:6-7) From this ayah it can be inferred that mountains are like stakes, which go deep down in the earth. This claim of Quran has been also proven right by science according to which the mountains are not merely above the surface; rather they have roots deep down below as well. The best example of this can be the highest peak in the world Mount Everest. According to scientists, Mount Everest that is 9km above the surface has its roots almost 125km below the surface thus the metaphor of stake in Quran actually gets a scientific backing.