About Mountains

And they ask you about the mountains. Say: My Lord will carry them away from the roots. Then leave it a plain, smooth level .You shall not see therein any crookedness or unevenness.  On that day they shall follow the inviter, there is no crookedness in him, and the voices shall be low before the Beneficent Allah so that you shall not hear aught but a soft sound. 
 (Surah Taha){Verse 105 To 108}