Q70 (IAS/2004) Geography › Indian Physical Geography › Peninsular river systems Answer Verified

Assertion (A) : West-flowing rivers of Peninsular India have no deltas. Reason (R) : These rivers do not carry any alluvial sediments.

Both A and R are individually true and R is the correct explanation of A

Both A and R are individually true but R is not the correct explanation of A

A is true but R is false

A is false but R is true

Result

Your answer: — · Correct: A

Explanation

Assertion (A) is true: West-flowing peninsular rivers like the Narmada and Tapi do not form deltas. They typically form estuaries.

Reason (R) is true: These rivers flow through hard rock terrain (rift valleys) and have a short, steep course. Because they do not pass through broad alluvial plains, they lack the alluvial sediment load required to build a delta. Their high velocity and the Arabian Sea's strong tidal action further prevent sediment deposition at the mouth.

Therefore, both statements are individually true, and the lack of sediment supply (R) correctly explains why these rivers cannot form deltas (A).

How others answered

Each bar shows the % of students who chose that option. Green bar = correct answer, blue outline = your choice.

Community Performance

Out of everyone who attempted this question.

43%

got it right

Change set

Question map

Assertion (A) : West-flowing rivers of Peninsular India have no deltas. Reason (R) : These rivers do not carry any alluvial sediments.

Explanation

SIMILAR QUESTIONS

Assertion (A) : Narmada and Tapti rivers do not form deltas. Reason (R) : These rivers form estuaries.

Assertion (A) : River Kalinadi is an east-flowing river in the southern part of India. Reason (R) : The Deccan Plateau is higher along its western edge and gently slopes towards the Bay of Bengal in the east.

Deltas are common in India for the east- flowing river systems, whereas they are nearly absent on the west coast, because west-flowing rivers

Statement I : Most of the east flowing rivers over the Deccan plateau have deltas at their mouth. Statement II : These rivers have courses through soft rocks of the Deccan . plateau.

Assertion(A): In the process of river capture, the head streams of the weaker river are diverted into the powerful river. Reason (R): The powerful river erodes its valley steadily.