River landscapes (Edexcel GCSE Geography A): Quizzes
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12 questions from this quiz
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Practise the questions
12 questions from this quiz
What are the three main physical processes that rivers use to shape the landscape?
What are the three main physical processes that rivers use to shape the landscape?
Erosion, transport & deposition
Which erosion process uses the sheer force of moving water to dislodge material?
Which erosion process uses the sheer force of moving water to dislodge material?
Hydraulic action
When is abrasion most effective as an erosion process?
When is abrasion most effective as an erosion process?
When river carries heavy coarse load
What happens to river load during the attrition process?
What happens to river load during the attrition process?
Particles become smaller & more rounded
What is the key difference between abrasion and attrition?
What is the key difference between abrasion and attrition?
Abrasion: load wears channel; attrition: load wears itself
Which type of erosion is particularly common in limestone or chalk bedrock areas?
Which type of erosion is particularly common in limestone or chalk bedrock areas?
Solution
Which transport method moves the largest material like boulders along the riverbed?
Which transport method moves the largest material like boulders along the riverbed?
Traction
What characteristic movement do particles show during saltation?
What characteristic movement do particles show during saltation?
Bouncing or leaping motion
Why do rivers carrying large amounts of suspended sediment appear brown or muddy?
Why do rivers carrying large amounts of suspended sediment appear brown or muddy?
Fine particles held within water column
In what order does a river deposit material as it loses energy?
In what order does a river deposit material as it loses energy?
Heaviest first, then finer particles
Which factor causes a river to lose energy and begin depositing its load?
Which factor causes a river to lose energy and begin depositing its load?
Reduced gradient, increased friction or decreased volume
What happens to river processes during flood conditions?
What happens to river processes during flood conditions?
All processes operate at maximum intensity