India - Drainage System · West-flowing rivers
Q1. _____ are peninsular rivers that fall into the Arabian Sea.
- (a) Krishna, Godavari
- (b) Narmada, Tapi
- (c) Mahanadi, Subarnarekha
- (d) Kaveri, Periyar
Answer & solution
Answer: (b) Narmada, Tapi
Correct Answer: Narmada, Tapi — Option (b)
Narmada and Tapi (Tapti) are the major peninsular rivers of India that flow westward and drain into the Arabian Sea. Narmada: The fifth-longest river in India (about 1,312 km); originates from Amarkantak in Madhya Pradesh; flows westward through the Narmada-Son Rift Valley (a structural valley, unlike most Indian rivers that flow in alluvial plains); drains into the Gulf of Khambhat (Gulf of Cambay) in the Arabian Sea; forms the traditional boundary between North India and South India (Deccan/peninsular); Tapi (Tapti): About 724 km long; originates from Satpura Range in Betul district, Madhya Pradesh; flows parallel to and south of the Narmada through Maharashtra and Gujarat; also drains into the Gulf of Khambhat (Arabian Sea) near Surat; Both rivers flow through rift valleys (grabens) formed by faulting — they are fault-guided rivers flowing westward, unlike most peninsular rivers (Krishna, Godavari, Kaveri, Mahanadi) which flow eastward into the Bay of Bengal.
Option (a) Krishna, Godavari — Incorrect: Krishna and Godavari are major peninsular rivers that flow EASTWARD and drain into the Bay of Bengal (not the Arabian Sea); Godavari (the 'Dakshin Ganga') originates in Nashik, Maharashtra and flows east through Telangana and Andhra Pradesh; Krishna originates near Mahabaleshwar and flows east through Karnataka, Telangana and Andhra Pradesh. The candidate selected this incorrect option.
Option (c) Mahanadi, Subarnarekha — Incorrect: Mahanadi and Subarnarekha both flow EASTWARD and drain into the Bay of Bengal — Mahanadi through Odisha (Paradip) and Subarnarekha through Jharkhand/Odisha; they are NOT Arabian Sea-draining rivers.
Option (d) Kaveri, Periyar — Incorrect: Kaveri (Cauvery) flows eastward from the Western Ghats through Karnataka and Tamil Nadu into the Bay of Bengal; while Periyar is a river of Kerala that drains into the Arabian Sea (at Kochi), Kaveri does not; Narmada and Tapi are the correct pair of peninsular rivers draining into the Arabian Sea.
Narmada and Tapi (Tapti) are the major peninsular rivers of India that flow westward and drain into the Arabian Sea. Narmada: The fifth-longest river in India (about 1,312 km); originates from Amarkantak in Madhya Pradesh; flows westward through the Narmada-Son Rift Valley (a structural valley, unlike most Indian rivers that flow in alluvial plains); drains into the Gulf of Khambhat (Gulf of Cambay) in the Arabian Sea; forms the traditional boundary between North India and South India (Deccan/peninsular); Tapi (Tapti): About 724 km long; originates from Satpura Range in Betul district, Madhya Pradesh; flows parallel to and south of the Narmada through Maharashtra and Gujarat; also drains into the Gulf of Khambhat (Arabian Sea) near Surat; Both rivers flow through rift valleys (grabens) formed by faulting — they are fault-guided rivers flowing westward, unlike most peninsular rivers (Krishna, Godavari, Kaveri, Mahanadi) which flow eastward into the Bay of Bengal.
Option (a) Krishna, Godavari — Incorrect: Krishna and Godavari are major peninsular rivers that flow EASTWARD and drain into the Bay of Bengal (not the Arabian Sea); Godavari (the 'Dakshin Ganga') originates in Nashik, Maharashtra and flows east through Telangana and Andhra Pradesh; Krishna originates near Mahabaleshwar and flows east through Karnataka, Telangana and Andhra Pradesh. The candidate selected this incorrect option.
Option (c) Mahanadi, Subarnarekha — Incorrect: Mahanadi and Subarnarekha both flow EASTWARD and drain into the Bay of Bengal — Mahanadi through Odisha (Paradip) and Subarnarekha through Jharkhand/Odisha; they are NOT Arabian Sea-draining rivers.
Option (d) Kaveri, Periyar — Incorrect: Kaveri (Cauvery) flows eastward from the Western Ghats through Karnataka and Tamil Nadu into the Bay of Bengal; while Periyar is a river of Kerala that drains into the Arabian Sea (at Kochi), Kaveri does not; Narmada and Tapi are the correct pair of peninsular rivers draining into the Arabian Sea.