Thursday, October 30, 2014

CDS II-2014

CDS II 2014
Arrange the following features formed by rivers in its course starting from upstream:
1. Meanders.
2. Falls.
3. Delta.
4. Oxbow Lake
select the correct answer using the code given below:
a. 2-1-3-4
b. 2-1-4-3
c. 1-2-3-4
d. 1-4-2-3
Upstream means starting from the uppeer reaches of a river. Falss are possible only when a river is losing height suddenly. Next comes meanders.  When a river reach  flatter land,flow is slowed down and  meanders are formed through erosion of the river banks and deposition on the inside of bends.
Oxbow lake is formed when a  wide meander is cut off  from the main   river, creating a free-standing body of water.
delta is formed at the mouth of a river,  where the river flows into an ocean, sea, estuary, lake, or reservoir.
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