Chp. 16 Study Questions Part 1

6 September 2022
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The land separating adjoining valleys is known as a(n) ________.
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Interfluve.
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The greatest amount of material transported by a stream is carried in its ________.
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Suspended load.
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This drainage pattern looks like the veins on the underside of a leaf:
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Dendritic.
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Streams which flow for only a part of the year are ________.
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Intermittent
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An imaginary surface extending beneath the continents which limits how deep streams may cut is ________.
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Base level.
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Rivers downcutting into a land surface, in the absence of other forces, usually tend to erode a ________-shaped form.
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V
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The most prominent of all depositional landscapes is the ________.
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floodplain.
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The final result of the classical theory of the geomorphic cycle concept is ________.
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a peneplain.
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When a meandering stream is incised into a gradually rising crust or bedrock the result is a(n) ________.
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entrenched meander.
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A steep walled defile with a V-shaped profile and narrow valley floor would, according to the geomorphic cycle, be in the ________ stage.
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youthful
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In terms of erosion, a gulley is a larger example of a feature called a(n) ________.
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Rill.
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Surface indicators of turbulence in streamflows include eddies and ________.
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Whirlpools
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Which of the below is the major concept to which all the others are part of?
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Drainage basin.
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A typical drainage pattern on conic volcanic mountains would be ________.
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Radial.
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In the system of stream orders, the smallest unit in the network is at the ________.
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1st order.
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The total volume of flow in streams is termed ________.
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Discharge.
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The elevation limit of a stream downcutting on a land mass is called ________.
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base level
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A flat alluvium-floored valley with fairly steep walls and a stream beginning to meander would be in the ________ stage of the erosion cycle.
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mature.
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Branching channels that cross a delta are known as ________.
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distributaries.
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The process in which small particles are moved along by streamflow or wind in a series of jumps or bounces is ________.
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Saltation.
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The direct collision of a raindrop with the ground, laterally shifting fine particles a few millimeters, is ________.
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Splash erosion.
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The detachment and removal of fragmented rock material is known as ________.
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erosion.
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Splash erosion ________.
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moves eroded particles uphill and downhill. Is sometimes minimal because of vegetation and blasts fine soil particles upward and outward.
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The drainage pattern common in ridge and valley landscapes is ________.
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Trellis.
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A ________ develops along a streambed containing bedrock of differential resistance.
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Knickpoint.
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The existence of a stream terrace is sure evidence of ________.
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Rejuvenation.
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The eventual result of ________ is to reduce almost all stream-carried debris to very small silt particles.
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Abrasion.
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A ________ pattern of drainage usually develops on alternating bands of hard and soft strata.
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Trellis.
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Niagara Falls is a large waterfall on a river, so it can be considered as an example of ________.
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a knickpoint.
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Death Valley is below sea level. Therefore, in Death Valley, base level is ________ ultimate base level.
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lower than
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Marking the outer edge of floodplains are landforms called ________.
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bluffs.
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All but one of the following would cause an increase in the erosive effectiveness of streamflow: ________.
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decrease the turbulence.
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Which of the following would be most likely to develop a radial drainage pattern?
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A cone-shaped volcano.
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A peneplain is the ________ of the classical geomorphic cycle of erosion.
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End product.
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On a meandering stream, maximum erosion takes place along the ________.
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Outer edge of the meanders.
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First order streams are the ________ of all streams.
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Shortest.
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________ is a measure of the particle size a stream can transport.
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Competence.
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Downcutting is usually most prominent along the ________ part of a stream valley.
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upper
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A stream valley lengthens at the expense of the ________.
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interfluve
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The idealized sequence of slope retreat, according to Davis, would result in ________.
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diminishing slope angles
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Fluvial process includes both the streamflow within valleys as well as ________.
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Overland flow
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The degree of turbulence in streamflow is determined by the velocity and the ________.
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stream channel roughness.
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As a stream-related measure, competence is expressed as a ________.
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diameter (millimeters)
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During low water cycles, any channel bottom change is likely to undergo ________.
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aggradation
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The point of confluence of a tributary with a higher order stream is a(n) ________.
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local base level.
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Any stream may lengthen its valley by ________ and delta formation.
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Headward erosion
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A valley bottom might be differentiated from valley sides in that ________.
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valley sides commonly have lips or rims.
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An interfluve can be found ________.
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between valleys
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Which type of erosion generates the most sediment per square meter in the places where it occurs?
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gulley erosion
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The chemical erosion of stream channels is known as ______.
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Corrosion