Allah the almighty says:
(Have We not made the earth a receptacle, for the living and the dead?, And have placed therein firm, and tall mountains, and have given you to drink sweet water?)
[Surat Al-Mursalat, verse: 25-27]
The scientific truth:
Scientists have found that the mountains contribute significantly in forming the clouds, as when the air currents loaded with water vapor come near the mountains, they bow to these mountains and rise up , which means that the mountains contribute in rising up the water vapor atoms. Therefore we notice that the tops of the high mountains are mostly covered with snow. And scientists have found that the water found near the high mountains is very pure.
The point of inimitability:
The inimitability in the previous verse appears with what scientists have discovered from scientific truths that there is a relation between fresh water and high mountains, as the mountains help in the formation of clouds and snowfall that then melts and changes into fresh water that we often find near these mountains.
The inimitability appears also with what the Quran has stated: the tall mountains and fresh sweet water, and this sign indicates that the Quran has preceded the scientists to this scientific truth which testifies the miraculous nature of the holy Quran and the truthfulness of Islam.