Which of the following is generally regarded as the largest zoo in the world in terms of area covered?

Introduction / Context:
The phrase “largest zoo in the world” can be defined in different ways, such as by land area, number of species or number of animals. Many general knowledge questions, especially in Indian exams, refer to the zoo that covers the greatest area of land. This question focuses on that criterion and tests awareness of important zoological parks, including one located in India.

Given Data / Assumptions:

• The question asks about the largest zoo in the world, interpreted primarily by area.
• Options include San Diego Zoo, Berlin Zoological Garden, Sri Venkateswara Zoological Park and London Zoo.
• We assume that the exam context follows the common GK convention that recognises Sri Venkateswara Zoological Park as one of the largest by area.

Concept / Approach:
Many famous zoos in Europe and America are renowned for species diversity and visitor numbers, but are not necessarily huge in land area. Sri Venkateswara Zoological Park in Andhra Pradesh, India, is often highlighted in GK materials as one of the largest zoos in the world by area. The approach is to distinguish fame and popularity from physical size, and then choose the zoo that is widely cited as having an exceptionally large land area.

Step-by-Step Solution:
Step 1: Identify that San Diego Zoo, Berlin Zoological Garden and London Zoo are globally renowned for their animal collections, but they are located in or near major cities with limited land. Step 2: Recognise that Sri Venkateswara Zoological Park is situated in a more expansive area, allowing it to spread over a very large tract of land. Step 3: Recall that many Indian GK sources describe Sri Venkateswara Zoological Park as one of the largest zoos in the world by area. Step 4: Conclude that, in the context of area-based ranking, Sri Venkateswara Zoological Park matches the description in the question.

Verification / Alternative check:
If we cross-check popular references, we find that Berlin Zoological Garden and San Diego Zoo are extremely rich in species and visitor numbers. However, their land area is smaller compared to very large safari-style or open-range zoos. Sri Venkateswara Zoological Park is frequently listed in GK materials as having a land area of several hundred hectares, which is far more than most urban zoos can accommodate. This supports the choice of Sri Venkateswara Zoological Park for area-based “largest zoo” questions.

Why Other Options Are Wrong:
San Diego Zoo, USA: Famous for conservation and species diversity, but it is not the largest in area.
Berlin Zoological Garden, Germany: One of the oldest and most species-rich zoos in the world, yet not the largest by land size.
London Zoo, United Kingdom: A historic and popular zoo, but located in a central urban setting with limited expansion space.

Common Pitfalls:
Because students may have heard more about European and American zoos, they might assume that the most famous ones must also be the largest. Another pitfall is ignoring the criterion of “area” and thinking only in terms of species or popularity. When answering GK questions, always pay attention to the exact wording, especially when terms like “largest by area,” “oldest,” or “most species” could change the correct choice.

Final Answer:
In general knowledge context based on area, the largest zoo is Sri Venkateswara Zoological Park, India.