The _______ River is known as the 'Lifeline of Kerala'.
- Periyar
- Bharathapuzha
- Pamba
- Chaliyar
Answer: Periyar
The Periyar River is called the 'Lifeline of Kerala' as it provides water for irrigation, drinking, and hydropower. It is the longest river in Kerala (244 km) and supports the state's agriculture and industry. The Periyar Tiger Reserve is located on its banks.