Which of the following rivers does not flow through Karnataka?

Karnataka, a state in southern India, is known for its diverse geography and numerous rivers that play a significant role in its agricultural and ecological landscape. The rivers that flow through Karnataka are crucial for the state's water resources and support a variety of ecosystems and human activities. The Cauvery River, also known as Kaveri, is one of the most important rivers in southern India. It originates in the Western Ghats in Karnataka and flows through the state before entering Tamil Nadu. The Cauvery is a major source of water for agriculture and supports a large population in both Karnataka and Tamil Nadu. The Kabini River is a tributary of the Cauvery and flows through the southern part of Karnataka. It is formed by the confluence of the Kedumuri and the Laxmanathirtha rivers and is an important water resource for the region. The Kabini is known for its reservoir, which is a popular tourist destination and provides water for irrigation and hydroelectric power. The Hemavathi River is another tributary of the Cauvery and flows through the southern part of Karnataka. It originates in the Western Ghats and is an important river for the region, supporting agriculture and providing water for various human activities. The Nila River, on the other hand, is a river that flows through Kerala, not Karnataka. It originates in the Anamala Hills and flows through the state of Kerala before emptying into the Arabian Sea. The Nila is an important river for Kerala, supporting agriculture and providing water for various human activities in the state. In summary, the rivers Cauvery, Kabini, and Hemavathi all flow through Karnataka, while the Nila River flows through Kerala. Therefore, the Nila is the only river listed that does not flow through Karnataka.