Understanding River Profiles

What is the lowest point in a river system called?

• Peak level

• Base level

• Midpoint

• Crest level

What causes high levels of energy in a river?

• High water temperature

• High levels of erosion

• High levels of deposition

• High levels of sediment

Why is the long profile important for understanding rivers?

• It shows the river's color

• It helps understand river management

• It indicates the river's width

• It measures water temperature

What is the purpose of studying river profiles?

• To measure water temperature

• To understand river color

• To manage river basins sustainably

• To calculate river width

What is the significance of the Victoria Falls in the Zambezi River profile?

• It is the source of the river

• It is a point where limestone is removed from basalt

• It is the mouth of the river

• It is where the river ends

What is the main cause of the erosion feature called High Force on the River Tees?

• Increased sediment deposition

• Lowering of the long profile downstream

• Rising sea levels

• Over-grazing of vegetation

What is the purpose of the Cow Green reservoir on the River Tees?

• To increase erosion

• To store winter floodwater

• To reduce sediment load

• To create a new river course

What is the main geological problem that affects erosion at the Whin Sill?

• High sediment load

• Low energy budget

• Resistant dolerite intrusion

• Over-grazing

What happens when a river reaches its base level?

• The river stops flowing

• The river's energy increases

• Deposition occurs

• The river changes direction

What happens to interfluves when the base level rises?

• They are raised

• They are lowered

• They remain unchanged

• They disappear