1) What sort of erosion is being described here? ‘The pressure of the water as it forces itself over bed and banks causes erosion’ a) Attrition b) Hydraulic Action c) Solution d) Abrasion 2) What sort of erosion is being described here? ‘Rocks wear away the bed and banks by rubbing against them?’ a) Attrition b) Hydraulic Action c) Solution d) Abrasion 3) What sort of erosion is being described here? ‘Rocks are worn away as their sharp edges knock against each other?’ a) Attrition b) Hydraulic Action c) Solution d) Abrasion 4) 3. What sort of transportation is being described here ‘material which is rolled along the river bed’ a) Traction b) Saltation c) Solution d) Suspension 5) What sort of erosion is being described here 'The river wears away the land at the side of the river.' a) Vertical b) Headward c) Lateral d) Corrosion 6) What is saltation? a) Where rocks bang together b) When rocks float along the river c) When material is dropped by a river d) When rock bounce along the river bed 7) Which erosion type? When rocks bang together and get smaller and rounder a) Hydraulic Action b) Abrasion c) Attrition d) Solution 8) Which erosion type? When rocks scrape along the bed and banks a) Hydraulic Action b) Abrasion c) Attrition d) Solution 9) Which of the following is the power of water wearing rock or land away a) Solution b) Hydraulic Action c) Traction d) Corrosion 10) Suspension is more common near the ...... a) Source b) Conflucence c) Watershed d) Mouth 11) For a waterfall to form there must be... a) Hard rock exposed b) Soft rock exposed 12) There is an indent formed at the beginning of the formation of a waterfall. What is this called? a) Gorge b) Plunge Pool c) Step d) River Cliff 13) There is a steep sided valley formed as the waterfall retreats upstream. What is this called? a) Gorge b) Plunge Pool c) Step d) River Cliff 14) Name the model that shows the change in river characteristics as you move downstream. a) Bradshaw Model b) Runway Model c) Burgess Model d) River Model 15) What does a larger hydraulic radius mean? a) It makes the river less efficient b) It makes the river more efficient 16) For a meander to form where does the river flow fastest? a) On the inside bend b) On the outside bend c) Near the source 17) Which process causes a river cliff to form? a) Transportation b) Erosion c) Deposition 18) Which process causes a slip off slope to form? a) Transportation b) Erosion c) Deposition 19) Name the area that is covered with flood water when a river bursts its banks. a) Bluff b) River Channel c) Mouth d) Floodplain 20) In which part of the course are levees formed? a) Upper b) Middle c) lower 21) When levees are formed what type of material is dropped first? a) the lightest b) the heaviest c) the roundest 22) Which of these river characteristics DECREASE as you move downstream? a) Velocity b) Particle size c) Depth d) Width 23) Which of these river characteristics INCREASE as you move downstream? a) Velocity b) Particle size c) Gradient

River processes & Landforms

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