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← GeographyWhat effect does increased sediment influx upstream cause in an alluvial meander bend?
A)Faster point bar growth rate✓
B)Decreased channel sinuosity Index
C)Higher erosion rate on cutbanks
D)Reduced width-to-depth ratio
💡 Explanation
Faster point bar growth occurs because increased sediment influx promotes more rapid deposition on the inner bank, therefore the point bar size increases. This increased influx accelerates bar growth, rather than decreasing any rates from constant sediment carrying via lateral accretion.
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