rivers and streams a river and stream can be defined as. a natural stream of water that flows...
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Rivers and streams A river and stream can be defined as. a natural stream of water that flows through
land and empties into a body of water such as an ocean or lake
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GeographyDrain most of the landscapes of the world.River basins are areas of the land that are
drained by riversRivers eventually flow out to sea or to an
internal basin lakeBasins are separated from each other by
water sheds (the area of land that drains in to a river)
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Geography continued
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StructureRivers and streams can be divided into three
dimensions1) wetted channel: contains water year round2) active channel: is usually flooded once a year3) riparian zone: is a transition between the aquatic environment to the terrestrial environment
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Physical ConditionsLight: amount of light penetration is affected
by two main factors organic and inorganic material that is washed into or blown in to them from the land and sediment that is suspended in the water
Temperature: closely tracks air temperature but does not reach the extremes of terrestrial habitats
Water Movements: is dependent on where the river or stream is located at
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Chemical ConditionsSalinity: the amount of salt dissolved in river
water reflects the prevailing climate in its basin
Oxygen: is inversely correlated with its temperature
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BiologyBoth fauna and flora vary greatlyIs dependent on the location of the river or
stream
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Human InfluencesPollutionDiverting Industry