Explanation: Rajasthan, a state in northwestern India, is known for its diverse physical features, including the Aravali Hills. The Aravali Hills are a significant mountain range that runs through the state, dividing it into two distinct regions. This range is not only a geographical landmark but also plays a crucial role in the state's climate and biodiversity.
The Aravali Hills are the oldest fold mountains in India, formed over 1.8 billion years ago. They stretch from the northwest to the southeast, covering a distance of about 800 kilometers. The range starts from the border of Gujarat and Rajasthan and extends into the state of Madhya Pradesh. In Rajasthan, the Aravali Hills are particularly significant as they influence the state's climate and topography.
The presence of the Aravali Hills in Rajasthan is a defining characteristic of the state's geography. The range is not only a natural boundary but also a source of various minerals and a habitat for diverse flora and fauna. The hills are known for their unique rock formations, which include granite, gneiss, and schist. These geological features contribute to the state's rich mineral resources, including marble, limestone, and copper.
In contrast, the Himalayas and the Western Ghats are located in different parts of India. The Himalayas are situated in the northernmost part of India, forming a natural boundary with the Tibetan Plateau. They are not present in Rajasthan, which is located in the northwestern part of India. Similarly, the Western Ghats are located in the western part of India, primarily in the states of Maharashtra, Goa, Karnataka, and Kerala. They are not present in Rajasthan.
Therefore, the correct answer is the Aravali Hills, as they are the only mountain range among the options that is located in Rajasthan. The other options, the Himalayas and the Western Ghats, are not present in Rajasthan, making them incorrect choices. Understanding the geographical features of Rajasthan is essential for comprehending the state's unique characteristics and its role in the broader context of Indian geography.