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8 questions
Where does a river start?
Mouth
Source
Confluence
Tributary
What is a long profile?
A line representing the river from its source to its mouth.
A line from one river bank to another
The point where a river starts
An area of land drained by a river and its tributaries.
What are the characteristics of the upper course of a river?
Wide, deep channel
Shallow, narrow channel
Widest, deepest channel
All of the above
Identify the characteristics of the middle course of a river.
Medium gradient, gently sloping valley sides with a wider, deeper channel.
Gentle gradient, very wide, almost flat valley, very wide and deep river channel.
Steep gradient, v-shaped valley, steep sides and narrow, shallow channel.
Where is vertical erosion the most dominant along the long profile of a river?
Upper course
Middle course
Lower course
Why is vertical erosion most dominant in the upper course of a river?
High turbulence causes the rough, angular particles transported by the river to be scraped along the riverbed, causing intense downwards erosion.
The discharge is highest here causing intense erosion.
The velocity of the water is highest here causing intense erosion.
What feature is this?
Waterfall
Confluence
Mouth
Estuary
Select all the features you might find at the mid-course of a river?
Meanders
Ox-bow lakes
Flood planes
Levees
Waterfalls
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