Explanation: Chilka Lake is a significant geographical feature located on the east coast of Odisha, India. It is a brackish water lagoon, which means it is a partially enclosed coastal body of water that has a free connection to the open sea and is influenced by tidal movements. The lake is spread over the Puri, Khurda, and Ganjam districts of Odisha and is the largest coastal lagoon in India.
The lake is known for its rich biodiversity and is home to a variety of flora and fauna. It is an important habitat for migratory birds and is recognized as a Ramsar site, which means it is a wetland of international importance. The lake is also a significant tourist attraction, drawing visitors from all over the world to witness its natural beauty and wildlife.
Chilka Lake is formed by the confluence of several rivers and is connected to the Bay of Bengal through a narrow channel. The lake's ecosystem is influenced by the monsoon rains and the tidal movements of the sea. The lake's water quality varies from freshwater to brackish, depending on the season and the level of tidal influence.
In contrast, Wular Lake is located in the state of Jammu and Kashmir and is one of the largest freshwater lakes in Asia. It is not situated on the east coast of Odisha. Dhebar Lake, also known as Pichola Lake, is located in the state of Rajasthan and is not on the east coast of Odisha either.
Therefore, the correct answer is Chilka Lake, as it is the only lake among the options that is situated on the east coast of Odisha and is a significant geographical feature of the state. Understanding the geographical distribution of major lakes in India is crucial for students preparing for competitive examinations that test geographical knowledge.