I believe the incorrect statement is A.
Yes. It is the midpoint because the line would be GHJ and H is halfway between the 14 difference.
Wind erosion is the main cause. And since it is the desert that wind can pick up tiny sand rock particles that slowly grind against the rock. Over time the erosion will give a jagged rock the smooth features as if it had been submerged in a river for the roughly same period of time.
Answer:B ABOUT 50%
Explanation:HOPE THIS HELPS YOU