Explanation: The Kaveri River, also known as Cauvery, is a significant river in South India, particularly in the states of Karnataka and Tamil Nadu. It is one of the major rivers in the region and plays a crucial role in the agricultural and economic activities of these states. The river originates in the Western Ghats in Karnataka and flows southeastward through Tamil Nadu before emptying into the Bay of Bengal.
The Kaveri River is approximately 800 kilometers long and is known for its rich cultural and historical significance. It is a perennial river, meaning it flows throughout the year, and it is fed by both rainwater and the melting snow from the Western Ghats. The river basin is one of the most fertile in India, supporting extensive agriculture, particularly rice cultivation.
The river's course through Tamil Nadu is particularly important. It flows through the districts of Erode, Karur, Tiruchirappalli, and Thanjavur before reaching the Bay of Bengal. The delta region formed by the Kaveri and its tributaries is a major agricultural area, often referred to as the "Rice Bowl of South India."
The mouth of the Kaveri River is located south of Cuddalore, a coastal town in Tamil Nadu. Cuddalore is situated on the Coromandel Coast, which is part of the Bay of Bengal. The river's delta is a complex network of distributaries and canals, which have been developed over centuries for irrigation and flood control.
Understanding the geography of the Kaveri River and its drainage pattern is essential for comprehending the hydrology and agricultural practices of Tamil Nadu. The river's flow and management are also subjects of significant political and legal disputes between the states of Karnataka and Tamil Nadu, highlighting its importance in the region.
In summary, the Kaveri River is the correct answer as it is the river that reaches the Bay of Bengal south of Cuddalore in Tamil Nadu. The other options, Narmada, Tapi, and Krishna, are incorrect as they either flow into different seas or are located in different states.