Rivers and processes
Quiz by Rowen Davies
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- Q1
Attrition is the process of
when rocks hit each other, breaking pieces off and rounding the material
material, such as limestone, is dissolved in the water
rocks scraping along the river bed smoothing out the surface in a sand papering effect
waves hitting the bank and causing pressure to build in cracks to make mini explosions
30s - Q2Which process involves the dropping of sediment?InfiltrationErosionTranspirationDeposition30s
- Q3
A V-shaped valley is located in
the lower course
upper, middle and lower course
the upper course
the lower course
30s - Q4
When boulders are moved along the river bed, this is called
Suspension
Saltation
Solution
Traction
30s - Q5
The process of transporting material through suspension is described as
rocks, such as limestone, are dissolved and transported along the river
springs are underneath the rocks making them bunnyhop downstream
pebbles and rocks are bounced along the river bed
the speed/power of the water is able to float the rocks/pebbles and transport them downstream
30s - Q6
Deposition is caused by...
the loss of energy in the river only.
sediment doesn't move.
sediment being too heavy to move only.
the loss of energy in the river and sediment being too heavy to move
30s - Q7
waterfalls are created by
Erosion on two types of rock (soft and softer)
Erosion on two types of rock (soft and hard)
Erosion on one type of rock (soft)
Erosion on one type of rock (hard)
30s - Q8
Hydraulic action is...
when rocks are dissolved in water
when water compresses air into cracks on the river bank, when released there is a mini explosion
when rocks move along the river bed scraping and scouring like a sandpapering effect
when rocks hop over each other
30s - Q9
Abrasion is...
when rocks hit the river bank and break
when rocks are dissolved in water
when rocks scrape and scour along the river bed like a sandpapering effect
when rocks break apart
30s - Q10
What is the landform called that forms beside a v-shaped valley
interlocking spurs
ox-bow lakes
gorges
meanders
30s - Q11
Traction is when...
large boulders are rolled along the river bed
sediment floats downstream in the river
when the water crashes against the river bank and compresses air into the cracks, it is released with an explosive force
sediment that is dissolved floats down the river
30s - Q12
Saltation is when...
sediment is dropped after the river loses energy
rock is dissolved in the river
large boulders are bounced in a hopping motion
pebbles are rolled along the river bed
30s