SCIENCE
EARTH SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a stream’s slope increases as it approaches base level
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water along the sides and bottom of the channel flows more rapidly
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deposition is greater in the outside curve of a meander
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the velocity of water is greater along the outside of a meander curve
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Detailed explanation-1: -In a meandering river, water will tend to flow fastest along the outside bend of a meander, and slowest on the inside bend.
Detailed explanation-2: -Stream velocity, which increases as the volume of the water in the stream increases, determines the kinds of organisms that can live in the stream (some need fast-flowing areas; others need quiet pools). It also affects the amount of silt and sediment carried by the stream.
Detailed explanation-3: -Gradients are typically the lowest at a river’s mouth, and highest at its headwaters. The higher the gradient, the faster the stream flows. Channel shape and texture. The shape and roughness of the channel also affect the velocity of the flowing water.
Detailed explanation-4: -As one moves along a stream in the downstream direction: Discharge increases, as noted above, because water is added to the stream from tributary streams and groundwater. As discharge increases, the width, depth, and average velocity of the stream increase.