Consider the following statements : 1. The boundaries of a National Park are defined by legislation. 2. A Biosphere Reserve is declared to conserve a few specific species of flora and fauna. 3. In a Wildlife Sanctuary, limited biotic interference is permitted. Which of the statements given above is/are correct ?

Let's analyze each statement:

1. The boundaries of a National Park are defined by legislation. National Parks are declared under the Wildlife (Protection) Act, 1972, by a notification issued by the State Government. While this notification is a legal instrument and part of a legal process, the Act itself does not define the specific boundaries. It empowers the government to define them. Therefore, stating they are defined by legislation (implying the Act directly) can be considered incorrect in a strict sense, as the specific demarcation is an executive act under the legislation.

2. A Biosphere Reserve is declared to conserve a few specific species of flora and fauna. While Biosphere Reserves have a broader mandate of conserving entire ecosystems, promoting sustainable development, and facilitating research, they are often established in regions rich in biodiversity, including specific, often endangered or endemic, species. The conservation of these specific species is an important component and outcome of a Biosphere Reserve's declaration and management, even if not its sole purpose.

3. In a Wildlife Sanctuary, limited biotic interference is permitted. This statement is correct. Unlike National Parks, where human activities are highly restricted, Wildlife Sanctuaries often permit limited human activities such as grazing, collection of minor forest produce by local communities, and regulated tourism, subject to the management plan and regulations.

Based on this analysis, statements 2 and 3 are correct, while statement 1 is incorrect due to the subtle distinction in how boundaries are defined (by executive notification under legislation, rather than directly by the legislation itself).

The final answer is B