Correct Option
The correct option is (a) 1 only.
Explanation
The Narmada is the largest west-flowing river of Peninsular India. It flows through a rift valley situated between the Vindhya Range to the north and the Satpura Range to the south. Its drainage system is characterized by distinct geological features such as gorges and waterfalls.
Statement-wise Analysis
- Statement 1 is Correct: The Narmada flows westwards into the Arabian Sea. This westward flow is primarily due to the geological fault (rift valley) running between the Vindhya and Satpura mountain ranges, which directs the water against the general eastward slope of the Peninsular plateau.
- Statement 2 is Incorrect: The river does not flow through a flat terrain throughout its course. It flows through a deep gorge, notably the Marble Rocks near Jabalpur. It also forms significant waterfalls, such as the Dhuandhar Falls. These features indicate a young, active river course in specific sections, contrary to the description of a flat terrain without waterfalls.
- Statement 3 is Incorrect: The Narmada rises from the Amarkantak Plateau in the Anuppur district of Madhya Pradesh. While the Amarkantak hills are often linked to the Maikal range (an eastern extension of the Satpuras), in exam terminology, the river specifically associated with rising in the Satpura ranges (Betul district) is the Tapi. The Narmada is distinct for its origin at the Amarkantak Plateau.
Key Takeaway
Narmada vs. Tapi: The Narmada originates from the Amarkantak Plateau and flows between the Vindhya and Satpura ranges. The Tapi originates from the Satpura Range (Multai, Betul) and flows south of the Satpuras.