Question detail
What is meant by the long profile of a river?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Section C: Physical landscapes in the UK
Question
What is meant by the long profile of a river?
Answer
The long profile of a river is a graphical representation that shows the change in elevation of the river from its source to its mouth. It typically illustrates how the gradient of the river decreases as it flows downstream.
Explanation
This question tests the student's understanding of river morphology and the concept of river profiles, which is essential for analyzing river landscapes.
Common mistake
Misidentifying river cross‑profile changes
Students often think that a river’s cross‑profile only changes where the river widens, ignoring the development of a narrow, V‑shaped valley in the upper reaches and a wider, U‑shaped valley in the lower reaches.
Explain that the upper reaches of a river have a narrow, V‑shaped valley with steep sides and a narrow bed, while the lower reaches have a wider, U‑shaped valley with a broader bed and gentler slopes, reflecting the change in gradient and sediment load along the long profile.
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