Which mountain range in northwestern Pakistan acts as a major watershed, dividing the Indus River system from the Amu Darya (Oxus) basin?

💡 Explanation:

The Hindu Kush Range, which extends across Afghanistan and northwestern Pakistan, acts as a crucial geographical watershed. It separates the drainage basin of the Indus River (flowing south into the Arabian Sea) from the drainage basin of the Amu Darya (Oxus River), which flows generally west and north toward Central Asia.