F.5 GCE AS Level - 1.3a Plenary

True or False:

The lower course has the largest river energy.

• True

• False

Which of the following are the characteristics of the upper course?

• Steeper gradient

• Biggest amount of load

• Angular and rough channel

• Wide and deep river channel

What type of erosion is being described below?

'The force of water pushing into cracks and hitting against the rivers’ walls.'

• Hydraulic action

• Abrasion

• Attrition

• Solution

What type of erosion is being described below?

'When load particles knock against one another. They will become smaller after collisions.'

• Hydraulic action

• Abrasion

• Attrition

• Solution

What type of erosion is being described below?

'When load in the river grind against the rivers’ bed or banks.'

• Hydraulic action

• Abrasion

• Attrition

• Solution

Reorder the following in descending order in terms of the size of load in fluvial transportation.

• Solution

• Suspension

• Saltation

• Traction

How do we describe 'the maximum size of material that a river is capable of transporting' in fluvial Geography?

• Capacity

• Competence

• Capability

• River load

In fluvial deposition, sorting occurs due to the different sizes of sediment.

Reorder the following river loads in descending order in the process of sorting.

(N.B. The first one will be the first to deposit in sorting.)

• Silt

• Sand

• Pebbles

• Clay

• Boulders

Which of the following conditions favour the process of deposition?

• Abundant supply of sediment

• High river energy

• More vegetation cover

• When river enter a large water body

What is the name of the curve showing the relationship between the river work and the size of grain in rivers?