10 questions🇬🇧English
🏞️ River Landforms – GCSE
Geography · GCSE — river processes, waterfalls, meanders, ox-bow lakes, levees and hydrographs
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Questions
Which erosion process makes rocks smaller and rounder as they knock against each other in the river?
Attrition
Abrasion
Hydraulic action
Solution
20s
Which transportation process carries fine silt and clay particles along within the flow of the water?
Solution
Suspension
Saltation
Traction
20s
How does the gradient of a river's long profile usually change from source to mouth?
Gentle near the source, steep near the mouth
The same gradient all the way along
Steep near the source, gentle near the mouth
Steep in the middle course only
20s
What is the typical cross profile of a river valley in the upper course?
A U-shaped valley with a flat floor
A narrow, steep-sided V-shaped valley
A wide, flat valley with a floodplain
A wide valley with very gentle sides
20s
At a waterfall, why does an overhang of hard rock form?
Sediment is deposited on the hard rock lip
Softer rock beneath is eroded faster and undercut
Hard rock erodes faster than the soft rock below
Hard rock is pushed up by tectonic forces
30s
As the overhang of a waterfall repeatedly collapses and the waterfall retreats upstream, which landform is left behind?
A gorge
An ox-bow lake
Interlocking spurs
A levee
20s
On a meander, where is the river cliff found and why?
Inside bend, where slower flow causes deposition
Outside bend, where slower flow causes deposition
Outside bend, where faster flow causes erosion
Inside bend, where faster flow causes erosion
30s
Which sequence correctly describes how an ox-bow lake forms?
Neck widens, river floods, erosion seals the loop
Plunge pool deepens, then the river leaves its bed
Neck narrows, river cuts through, deposition seals loop
Landslide dams the loop, then the river diverts
30s
Why are levees made mostly of coarser sediment close to the river channel?
Coarse sediment is carried furthest by floodwater
Bank collapse adds large rocks to the river edge
Floodwater loses energy and drops heavy sediment first
Fine sediment is eroded away by the river current
30s
Which change in a drainage basin would most likely shorten the lag time on a storm hydrograph?
Restoring wetlands on the floodplain
Making the soil more permeable
Building more roads and car parks
Planting trees on the valley sides
30s