How long does erosion of a rock or cliff take?
Depending on what rocks/minerals are involved, erosion of any surface can take anywhere from 5 minutes to millions of millions of years. Think of an ocean cliff. The ocean waves pound and pound at the cliff nonstop, but the cliff stays there. Over time, however, that cliff will break off, much like ice does in the arctic. On the other hand, a giant tsunami could crash into the side of the cliff and within seconds change the entire physical appearance.
