2017 · Q100
Which of the following statements is/are correct ?
- 1Himalayan rivers have their origin in the snow-covered areas, hence are dry in winter season.
- 2Rivers of the Peninsular Plateau have reached maturity.
- 3Himalayan rivers depict all the three stages of normal cycle of erosion.
Select the correct answer using the code given below :
General KnowledgeGeography
- A2 only
- B1 and 3 only
- C2 and 3 only
- D1, 2 and 3
Explanation
Statement 1 is false: the Himalayan rivers are perennial — fed by snowmelt and glaciers, they flow even in winter — while it is the peninsular rivers that depend on monsoon rain and shrink in the dry season. Statement 2 is true: the ancient peninsular rivers have reached maturity and flow with graded profiles. Statement 3 is true: Himalayan rivers such as the Ganga exhibit all three stages of the normal (Davisian) cycle of erosion — youthful gorges in the mountains, mature meanders in the plains, and old-age deltas at the mouth. Hence statements 2 and 3 only are correct.