The Vembanad Lake, India’s longest lake, is an important part of the:

The correct answer is d) Backwater System.

The Vembanad Lake is a large, shallow lake in the state of Kerala, India. It is the largest lake in Kerala and the second largest lake in India, after the Chilika Lake in Odisha. The lake is an important part of the backwater system of Kerala, which is a network of canals, rivers, and lakes that are connected to the Arabian Sea. The backwater system is a popular tourist destination and is also an important source of water for irrigation and drinking water.

The Chaliyar River System is a river system in the state of Kerala, India. The

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