12. Which of the following statements is incorrect?
Poll
- a.Monadnocks are formed when softer rocks around a body of resistant rock erode exposing harder rock
- b.River terraces are step-like landforms formed due to vertical erosion
- c.Potholes are circular depressions formed due to stream erosion aided by abrasion of rock fragment
- d.Shallow and narrow meanders found cut in hard rocks are called incised meanders