Q1. Which of the following statements is most appropriate about the Himalayan rivers?
A The nature of flow is seasonal and dependent on monsoon rainfall.
B The catchment area is very large. Correct
C Their place of origin is a plateau.
D They flow through a fixed course with well-adjusted valleys.
Explanation
Himalayan rivers such as the Indus, Ganga and Brahmaputra systems have very large catchment areas because they drain extensive mountain and plain regions. Their flow is perennial, fed by snowmelt, glaciers and rainfall, so calling it merely seasonal and monsoon-dependent describes many peninsular rivers better. Their sources lie in the Himalayas, not on a plateau. Fixed courses with well-adjusted valleys are more characteristic of older peninsular drainage, whereas Himalayan rivers are younger and often show active erosion and shifting behaviour in plains.