[DB 1506 (5); OAB 47], and [DB 1506 (11); OAB 26] In a seminal young-Earth reference book (Scientific Creationism, Santee, CA: Master Books, 1974), H.M. Morris claims that the current rate of volcanic activity would cause the continents to cover a far larger fraction of Earth's surface than we now observe, if it had been continuing for billions of years. Yet, a few pages later, he claim that erosion would wear down all the continents to sea level in much less than 4 billion years. The fallacy here is obvious: These two processes (assisted by others such as mountain uplift) counterbalance each other. You cannot cite each process separately as if it would build up without end. In fact, they are in equilibrium, and each process keeps the other from running amok.