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Which mountain range acts as a water divide between the Indus and Ganga river systems?
Aravalli Range
Zanskar Range
Ladakh Range
Shiwalik Range
Aravalli Range
The Aravalli Range acts as a prominent water divide in Northern India, separating the drainage basins of the Indus river system (flowing west and northwest) from the Ganga river system (flowing east and southeast). This orographic feature dictates the flow direction of major rivers like the Luni to the west and the Chambal and Banas to the east.
The Aravalli Range acts as a prominent water divide in Northern India, separating the drainage basins of the Indus river system (flowing west and northwest) from the Ganga river system (flowing east and southeast). This orographic feature dictates the flow direction of major rivers like the Luni to the west and the Chambal and Banas to the east.
The Aravalli Range is geologically one of the oldest fold mountains in the world, stretching roughly 692 km from Delhi to Palanpur in Gujarat.
The Delhi Ridge, an extension of the Aravalli Range, serves as the specific watershed line.
Rivers west of this divide eventually discharge into the Arabian Sea, while those to the east join the Yamuna-Ganga system toward the Bay of Bengal.
The range is highly weathered and represents the remains of a prehistoric mountain system.
The Aravallis play a crucial role in preventing the desertification of the Indo-Gangetic plains by blocking the expansion of the Thar Desert.
The Zanskar and Ladakh Ranges are part of the Trans-Himalayas and lie far north of the drainage divide between Indus and Ganga plains.
The Shiwalik Range represents the southernmost foothills of the Himalayas and does not function as the primary divide between these two major systems.
A is correct тАФ The Aravalli Range serves as the primary drainage divide separating the Indus and Ganga river basins.
When studying drainage patterns, also note the 'Ambala' region, which acts as a secondary water divide in the northern plains, separating the Indus and Ganga systems.