Video 18: Rivers and Springs
Quiz by Terry Milne
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12 questions
Show answers
- Q1What is the percentage of total global water that is freshwater?1.3 percent2.5 percent68.6 percent96.5 percent30s
- Q2What type of stream flow is characterized by erratic horizontal and vertical movements?Base levelLaminar flowSuspended loadTurbulent flow30s
- Q3What type of channel is cut into the underlying strata of the earth?Bedrock channelBraided channelDelta channelAlluvial channel30s
- Q4What is the result of a stream entering a large body of water and depositing sediment?MeanderDeltaRapidAlluvial fan30s
- Q5What is the ultimate base level for most streams and rivers?OceanLakeWaterfallMountain30s
- Q6What type of channel is characterized by converging and diverging channels threading among numerous islands or gravel bars?Meandering channelBraided channelAlluvial channelBedrock channel30s
- Q7What feature is formed when a river meander is cut off and becomes a lake?Delta formationAlluvial fanMeandering riverOxbow lake30s
- Q8What is the zone of active erosion on the outside of a meander called?Cut bankMain channelOuter edgeDeposition zone30s
- Q9What is the term for the maximum load of solid particles a stream can carry?DischargeVelocityCapacityErosion30s
- Q10In which type of valley are steep sides and features like waterfalls and rapids common?Braided valleyU-shaped valleyV-shaped valleyAlluvial valley30s
- Q11What is the process by which sediment is deposited at the base of mountain fronts in a fan shape?Oxbow lake formationDelta formationAlluvial fan formationMeandering river formation30s
- Q12Where do most rivers aim to erode down to in order to reach their ultimate base level?Mountain topOcean floorSea levelValley floor30s