Solved previous year question from the OPSC OAS/OCS 2022 Preliminary Examination (General Studies), with the official answer key and a detailed explanation.
Question
Which of the following is associated with Chilika lake?
I. First Indian wetland under the Ramsar Convention.
II. Irrawaddy dolphins
III. Lacustrine plain
Select the correct answer using the code given below
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Answer & Explanation
Correct answer: (D) I, II and III
All three statements are correct regarding Chilika
Lake:
- Chilika Lake was designated as the first Indian wetland of international importance under the Ramsar Convention in 1981, recognizing its ecological significance.
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- Chilika Lake is home to the endangered Irrawaddy dolphins (Orcaella brevirostris). It’s one of the few places in India where these marine mammals can be found, making it crucial for their conservation.
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- Chilika Lake is situated in a lacustrine plain, which is a flat area formed by lake deposits. The lake itself and its surrounding areas represent a lacustrine environment with sedimentary formations from ancient and present lake processes.
Chilika Lake, being Asia’s largest brackish water lagoon, is significant for multiple reasons – its biodiversity (including migratory birds), its unique ecosystem supporting rare species like Irrawaddy dolphins, and its geological formation as a lacustrine feature. Its recognition under the Ramsar Convention highlights its international importance as a wetland ecosystem.
