Correct Option (A):
The description accurately refers to Bhitarkanika National Park and Wildlife Sanctuary, located in Odisha. This protected area is a significant mangrove ecosystem formed in the deltaic region of two major rivers:
- The Brahmani River, which originates in Jharkhand (formed by the confluence of the Sankh and South Koel rivers).
- The Baitarani River, which originates in the Gonasika hills of the Keonjhar district in Odisha.
These rivers merge a short distance from the Bay of Bengal, creating a rich estuarine environment. Bhitarkanika is renowned for its exceptional biodiversity, particularly its population of saltwater crocodiles, migratory birds, and diverse mangrove species. It is designated as a Ramsar site, highlighting its importance as a wetland ecosystem.
Incorrect Options:
- Chandipur-on-sea: This is a coastal town in Odisha known for its unique receding beach phenomenon, where the sea recedes significantly during low tide. It is not primarily recognized as a major river delta or a protected area for significant biodiversity in the context described.
- Gopalpur-on-sea: This is a popular beach town and a former seaport located in the Ganjam district of Odisha. It is a coastal settlement and does not fit the description of a riverine delta ecosystem or a protected area formed by the confluence of two major rivers as specified in the question.
- Simlipal: Simlipal National Park is a prominent tiger reserve and a biosphere reserve situated in the Mayurbhanj district of Odisha. It is a terrestrial ecosystem, primarily known for its forests, waterfalls, and wildlife, including tigers and elephants. It is not a coastal or riverine delta ecosystem where two rivers merge into the sea.