Q. Consider the following statements:

1. Hilsa fish is found only in the freshwater of rivers in India
2. Saltwater crocodiles are found only in the Sunderbans
3. Gangetic dolphin is found only in Ganges river

Which of the above statements is / are correct?
Answer: None of them
Notes: None of the statements are correct. Hilsa fish inhabits both freshwater and marine environments, including estuaries and coastal waters. Saltwater crocodiles are not unique to the Sunderbans but are also found in Odisha, Andhra Pradesh, and Tamil Nadu. The Gangetic dolphin occurs in the Ganga, Brahmaputra, Indus rivers and their tributaries, not just the Ganges.