Question

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 

(a) 1 only (b) 1 and 2 only (c) 2 and 3 only (d) 1, 2 and 3

Answer 1

(b) Falls are possible only when a river is losing height suddenly. Next comes meanders. When a river reaches 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.