Explanation: To understand the context of the given statements, we need to break down each one and analyze its accuracy.
1. **The four biggest metropolitan cities in India are Kolkata, Delhi, Mumbai and Pakistan**: This statement is incorrect. The four largest metropolitan cities in India are Kolkata, Delhi, Mumbai, and Chennai. Pakistan is a country, not a city, and it is not located in India. This statement is a clear error in geographical knowledge.
2. **India Gate is located in Mumbai**: This statement is also incorrect. India Gate is a prominent monument located in New Delhi, the capital city of India. It is a war memorial dedicated to the Indian soldiers who died in World War I and the Third Anglo-Afghan War. Mumbai, on the other hand, is a different city located on the western coast of India. This statement reflects a misunderstanding of the location of significant landmarks in India.
3. **In geographical terms, the push-pull factors are those that drive people away from a place and draw people to a new location**: This statement is correct. Push-pull factors are a fundamental concept in migration theory. Push factors are conditions that compel individuals to leave their current location, such as economic hardship, political instability, or natural disasters. Pull factors, on the other hand, are conditions that attract individuals to a new location, such as better job opportunities, political stability, or a higher standard of living. Understanding these factors is crucial in studying patterns of migration and urbanization.
Given the analysis of each statement, the correct answer is (C) Only 3, as it is the only statement that is true and accurately describes the concept of push-pull factors in migration theory. The other statements contain factual errors and are therefore incorrect.
In summary, the correct answer is (C) Only 3, because it correctly identifies the true statement about push-pull factors, while the other statements contain significant errors in geographical and urban knowledge. Understanding these concepts is essential for students preparing for competitive examinations that test knowledge of Indian geography and urban studies.