Rivers key terms (part 3: landforms)

Which terms means the fastest current in a river?

• Thalweg

• Thilwag

• Tholwog

• Thulwug

Which terms means the shallow-gradient area of deposition found on the inside curve of a meander?

• Slip-off slope

• River cliff

• Riffle

• Distributary

Which term means the undercut bank of the outside bend of meander, created by erosion?

• River cliff

• Plunge pool

• Floodplain

• Levee

What is the name for the semi-circle lake created when a meander breaches and straightens its course?

• Oxbow

• Horseshoe

• Bullbend

• Donkeycurve

What is the name for the series of small waterfalls?

• Eddies

• Riffles

• Rapids

• Meanders

Which erosion process will not directly effect the rate of plunge pool growth?

• Abrasion

• Hydraulic action

• Attrition

• Solution

Which is NOT a type of weathering?

• Biological

• Chemical

• Physical

• Sociological

Which condition is likely to generate a meander breach because it increases the amount of energy a river has?

• Winter storm

• Summer drought

• Spring shower

• Autumn drizzle

What is the name for a smaller channel which breaks off from the main river course in the lower section of a river?

• Distributary

• Floodplain

• Levee

• Saltmarsh

What is the term used to say that waterfalls move backwards towards the river source?

• Retreat

• Withdrawal

• Regress

• Seclusion