2.4) Refer to the diagram on River grading. Waterfall A 2.4.1 Does the diagram represent a graded or an ungraded river? [source: mind the gap] 2.4.2 Motivate your answer in QUESTION 2.4.1. 2.4.3 Explain why'feature A is regarded as a temporary base level of erosion. (2) 2.4.4 Describe the conditions under which a graded river can become ungraded. 2.4.5 Explain how a grading occurs in a river system. (2 x 3) (4) (6)
