Explanations:Delhi, the capital city of India, is known for its rich history and cultural heritage. Geographically, it is situated in the northern part of India and is surrounded by the state of Uttar Pradesh on three sides and Haryana on the fourth side. The city's geographical features include the presence of the Yamuna River and the presence of the Arravali Hills in the southern part of the city.
The Arravali Hills are an ancient mountain range that extends from the northwest to the southeast of India, covering parts of Rajasthan, Haryana, and Delhi. These hills are the oldest mountain range in India, formed approximately 1.8 billion years ago during the Archean era. The range is characterized by its low elevation, with the highest peak, Guru Shikhar, reaching an elevation of 1,722 meters (5,650 feet) in Rajasthan. In Delhi, the Arravali Hills are not as prominent, but they still play a significant role in the city's geography and ecology.
The presence of the Arravali Hills in Delhi is important for several reasons. Firstly, they provide a natural boundary for the city, separating it from the surrounding plains. Secondly, they contribute to the city's biodiversity by providing a habitat for various flora and fauna. The hills are also significant for their historical and cultural importance, with several ancient temples and historical sites located within the range.
It is important to note that the other mountain ranges mentioned in the options, such as the Himalayas and the Naga Hills, are not geographically relevant to Delhi. The Himalayas are located much farther north in India and are the world's highest mountain range, while the Naga Hills are located in the northeastern part of India, specifically in the state of Nagaland. Therefore, the correct answer is the Arravali Hills, which are the only mountain range that extends into the southern part of Delhi.