“Thou seest the mountains and thinkest them firmly fixed: but they shall pass away as the clouds pass away: (such is) the artistry of Allah, who disposes of all things in perfect order: for he is well acquainted with all that ye do.” (Quran 27:88)

In ancient Arabia, mountains are considered fixed. Fifteen hundred years passed, geology evolves, we realize that Quran is absolutely correct on the fact that the mountains are passing phenomena. Himalayas will pass, Mount Everest will pass because the mountains rise from the motion of the plates of the earth against each other and then they erode away.

The mountains are moving because they are made of small particles we can not see this movement, it is the movement of the particles inside the mountains. God can make the mountain disappear on the Day of Judgment.

The passage in the Book of Knowledge Encyclopedia on Mountains states, “A belt of rocks across the flat central part of Canada and United States from northern Quebec to south western Montana (a very large sector of land), a flat area of rocks marks the site of a mountain system that existed approximately 2 billion 7 hundred million years ago. The oldest mountain system yet recognized on North American continent”.

See this proof. The more science we learn, we become more able to understand the Quran. 

Excerpts from the "Quran & Science" sunday lecture addressed by Dr. Gasser Hathout at the Islamic Center of Southern California, Los Angeles on July 17, 2005.