Understanding Chambal River Topography: Assertion and Reason

This question asks us to evaluate two statements about the Chambal River: an Assertion (A) and a Reason (R), and determine their truthfulness and the relationship between them.

Analysis of Assertion (A)

Assertion (A) states: The Chambal River is known for its badland topography called the Chambal ravines.

This statement is true. The Chambal River is famously associated with extensive badland formations, characterized by deep gullies and ravines. These are a result of severe soil erosion in the region through which the river flows. The Chambal ravines are a significant geomorphological feature in India.

Analysis of Reason (R)

Reason (R) states: The Chambal flows through a deep gorge and eroded terrain before joining the Yamuna.

This statement is also true. The Chambal River's course involves traversing areas with significant erosion, leading to the formation of steep-sided valleys and ravines. Before its confluence with the Yamuna River, the river indeed passes through these geologically active and eroded landscapes.

Relationship Between Assertion (A) and Reason (R)

The existence of the Chambal ravines (badland topography mentioned in A) is a direct consequence of the processes described in Reason (R). The severe erosion and the river's flow through this deeply dissected terrain are the primary causes for the formation and characteristic features of the Chambal ravines. Therefore, Reason (R) provides a valid explanation for Assertion (A).

Conclusion

Since both Assertion (A) and Reason (R) are true statements, and Reason (R) correctly explains the cause of the phenomenon described in Assertion (A), the correct option is the one that states both are true and R is the correct explanation of A.