River Profiles and Courses

What is a river profile?

• A river profile is a cross-sectional view of a river from its source to its mouth, showing changes in elevation and slope along its course.

• A river profile is a term used to describe the flow rate of a river at different locations.

• A river profile is a measurement of the width and depth of a river at a specific point.

• A river profile is a map of all the rivers in a particular region.

What are the three main stages of a river profile?

• upstream, downstream, and channel

• headwaters, confluence, and estuary

• upper course, middle course, and lower course

• source, mouth, and tributary

What is the upper course of a river?

• Source

• Mouth

• Confluence

• Middle course

What are the characteristics of the upper course of a river?

• Steep gradients, high velocity, turbulent flow, narrow and shallow, V-shaped valley, rapids, waterfalls

• Steep gradients, low velocity, calm flow, wide and shallow, U-shaped valley, still water

• Flat gradients, moderate velocity, steady flow, wide and shallow, straight valley, calm water

• Slow gradients, low velocity, calm flow, wide and deep, U-shaped valley, still water

What is the middle course of a river?

• The middle course of a river is the section between the source and the mouth.

• The middle course of a river is the section between the rapids and the waterfall.

• The middle course of a river is the section between the bend and the delta.

• The middle course of a river is the section between the upper course and the lower course.

What are the characteristics of the middle course of a river?

• Moderate gradient, wider and deeper channel, meandering flow, and presence of floodplains

• Moderate gradient, narrower and shallower channel, straight flow, and absence of floodplains

• Low gradient, wider and deeper channel, straight flow, and absence of floodplains

• Steep gradient, narrow and shallow channel, straight flow, and absence of floodplains

What is the lower course of a river?

• The lower course of a river is where it meets the sea or a lake.

• The lower course of a river is where it disappears underground.

• The lower course of a river is where it flows uphill.

• The lower course of a river is where it starts from.

What are the characteristics of the lower course of a river?

• Narrow and shallow channel, faster flow velocity, erosion of sediment, absence of floodplains and deltas

• Wider and shallower channel, slower flow velocity, erosion of sediment, absence of floodplains and deltas

• Narrow and deeper channel, slower flow velocity, deposition of sediment, absence of floodplains and deltas

• Wider and deeper channel, slower flow velocity, deposition of sediment, formation of floodplains and deltas

What is river erosion?

• The process of building up land and rocks by a river.

• The process of freezing and thawing of river water.

• The process of diverting water away from a river.

• The wearing away of land and rocks by a river.

What are the different types of river erosion?

• corrosion, deposition, transportation, and weathering

• sedimentation, evaporation, precipitation, and infiltration

• hydraulic action, abrasion, attrition, and solution

• melting, freezing, sublimation, and condensation