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Author Question: What is stream capture and might it be about to happen to the stream nearest your home? What will ... (Read 78 times)

burton19126

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on: Jul 13, 2018
What is stream capture and might it be about to happen to the stream nearest your home?
 
  What will be an ideal response?

Question 2

What is the main environmental problem associated with the Mississippi River delta and what is to be done about it?
 
  What will be an ideal response?
McKnight's Physical Geography: A Landscape Appreciation ¦ Hess, Tasa ¦ 12th Edition
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katheyjon

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Reply #1 on: Jul 13, 2018
Answer to Question 1

Answer: A stream captures or beheads another when the drainage from one captures a tributary flow from another basin as the first stream eats headward. In the local setting one might postulate such a circumstance if there seems to be a stream actively eating headward with another stream close by with a low drainage divide in between.

Answer to Question 2

Answer: Dams upstream contain some of the silt that naturally replenishes the delta. With rising sea level and the sinking of existing sediments this means that the area of the delta is noticeably shrinking and saltwater encroaching. It has been proposed to divert freshwater into the marshes to enhance the vegetation but there is not plan and it is uncertain if this will solve the deltas problems.


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