Stages of a river
Name three stages of a river
youthful, mature and old stage
Rivers are formed through erosion, deposition and ______.
Transportation
Renewable, clean and cheap
Name a landform in the youthful stage of a river
Waterfall
What does hydraulic action mean?
Force of moving water wearing away rock
Name two ways pollution can occur in rivers.
Industrial waste from factories/ slurry spread into rivers (surface runoff)
Waterfalls are formed through deposition and erosion. True or False
True
Name four processes of river erosion
Hydraulic action, abrasion, attrition and solution
Name two drainage patterns
Dendritic, trellis, radial or deranged
What two landforms are formed in the old stage of a river?
Floodplains and levees
Explain the term attrition
Stones and rock wear down and break off eachother
A dendritic drainage system is shaped like a tree-branch. True or False.
True
What stage of the river are interlocking spurs formed in?
Youthful stage
What causes deposition to occur?
Increase in load, reduction in rivers volume , reduction in rivers speed or when gradient levels off.
What is the name of the main river channel known as the transport route in Europe
River rhine