CTET 2 Social and Science Jan 2021 Paper

Question : 50 of 150

Marks: +1, -0

Consider the statements A, B, C on dolphin and choose the correct answer.
A. Dolphins are found in the fresh water of river Ganga and Brahmaputra.
B. Dolphin sanctuary is located in the state of Bihar.
C. The presence of dolphin is an indicator of the health of the river.

B and C are correct but A is incorrect.
A and B are correct but C is incorrect.
A, B and C all are correct.
A and C are correct but B is incorrect.

Validate

Solution:

The Ganges river dolphin was officially discovered in 1801. The Ganges river dolphin can only live in freshwater and is essentially blind. It is an endangered freshwater or river dolphin. The Ganges river dolphin is important because it is a reliable indicator of the health of the entire river ecosystem. The Government of India declared it the National Aquatic Animal in

2009 .

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