which of the following is correct sequence in the formation of an ox-bow lake?
a.meander,cut-off,narrow neck of meander,flooding
b.meander,narrow neck of meander,
flooding,cut-off
c.cuy-off,flooding,narrow neck of meander,meander
d.narrow neck of meander,cut-off,flooding,meander
Whatever your name is -- please do not keep posting under different names.
Also -- you seem to be fishing for answers for some online class. To show us that you're not trying to cheat, please indicate which of the answers is correct.
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To determine the correct sequence in the formation of an ox-bow lake, we need to understand the process involved.
1. Meander: A meander is formed when a river's flow curves or loops in its course due to erosion and deposition.
2. Cut-off: Over time, the constant flow of water along the meander erodes the land on the inside of the curve and deposits sediment on the outside. Eventually, the river erodes a new, shorter path across the neck of the meander, cutting off the old loop.
3. Narrow neck of meander: After the cut-off, the original meander forms a U-shaped bend that is now disconnected from the main river flow. This disconnected portion has a narrow neck.
4. Flooding: Without the flow of the main river, the disconnected portion of the old meander becomes a small lake or pond. During periods of high rainfall or flooding, water spills over from the main river into the disconnected portion, filling it with water.
Now let's examine the options:
a. Meander, cut-off, narrow neck of meander, flooding: This order is incorrect as it presents the flooding after the cut-off, whereas flooding occurs after the formation of the ox-bow lake.
b. Meander, narrow neck of meander, flooding, cut-off: This sequence is also incorrect. In this order, the cut-off occurs after the flooding, but the cut-off should happen first.
c. Cut-off, flooding, narrow neck of meander, meander: This sequence is incorrect as it places the meander at the end of the process, whereas the meander should occur before the cut-off.
d. Narrow neck of meander, cut-off, flooding, meander: This sequence is the correct one. It starts with the narrow neck of meander, followed by a cut-off that creates the ox-bow loop. Then flooding occurs, and finally, the meander is formed.
Therefore, the correct sequence in the formation of an ox-bow lake is option d: narrow neck of meander, cut-off, flooding, meander.