Which section of a river usually has the steepest gradient?
Lower course
Middle course
Upper course
None of the above
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Which section of a river usually has the steepest gradient?
Lower course
Middle course
Upper course
None of the above
This feature is formed when a meander is abandoned by a river.
Ox bow lake
Braiding
Levee
Interlocking spurs
The point where the tributary meets the main river.
Confluence
Tributary
Watershed
Drainage basin
The place where a river begins is called its:
Spring
Estuary
Source
Headwater
The high land or ridge which separates one drainage basin or watershed from another is called a:
mountain
divide
meander
watershed
The area where river water mixes with ocean water is called
tributary
estuary
waterfall
divide
Rivers with very fast-flowing and turbulent water.
lake
canal
rapids
creek
Rivers that flow over cliffs are called
waterfalls
valley
riverbed
irrigation
Rivers are important because they provide
water for municipal use and irrigation
heat to produce electricity
Natural embankments created alongside a river are known as:
Interlocking spurs
Deltas
Levees
Flood plains
In the lower course mostly...........takes place. This happens because the gradient is low and water flows slowly.
Erosion
Transportation
Deposition
Traction
As a river begins to lose energy, material carried in suspension is deposited first and the rest of the load is carried farther. Think! Remember graded bedding.
True Statement
False Statement
A.............is a body of water that flows from high ground to low ground.
lake
estuary
meander
river
A piece of land which formed as a result of a river depositing sediment into the sea is called:
A delta
A levee
braiding
An ox bow lake
A landform that forms from deposition of sediment carried by a river as the flow leaves its mouth and enters slower-moving or standing water. This occurs where a river enters an ocean, sea, estuary, lake, reservoir, or (more rarely) another river that cannot transport away the supplied sediment.
delta
volcano
flood
channel