Explanation: Rajasthan, a state in northwestern India, is known for its diverse geography, which includes deserts, lakes, and mountain ranges. Among these, the Aravali Range is a significant feature that runs through the state, dividing it into two distinct regions. The Aravali Range is the oldest mountain range in India, formed over 1.8 billion years ago during the Archean era. It stretches from the northwest to the southeast, starting from the border of the Kutch region in Gujarat and extending into Rajasthan.
The Aravali Range is crucial for understanding the physical geography of Rajasthan. It plays a significant role in the state's climate, water resources, and biodiversity. The range acts as a natural barrier, influencing the distribution of rainfall and temperature across the state. The western part of Rajasthan, which lies beyond the Aravali Range, is predominantly arid and forms part of the Thar Desert. In contrast, the eastern part of Rajasthan, which lies to the east of the Aravali Range, receives more rainfall and has a more fertile landscape.
The Aravali Range is not only a geographical feature but also holds cultural and historical significance. It is home to several important cities and towns, including Ajmer, Udaipur, and Mount Abu, which is the highest peak in Rajasthan. The range is also rich in mineral resources, including marble, limestone, and copper, which have been mined for centuries.
In contrast, the other options listed do not form part of Rajasthan's geography. The Vindhya Range is located in central India, primarily in Madhya Pradesh and parts of Uttar Pradesh, and does not extend into Rajasthan. The Western Ghats are a mountain range located along the western coast of India, primarily in the states of Maharashtra, Goa, Karnataka, and Kerala. The Purvanchal Range is located in eastern India, primarily in the states of Bihar and Jharkhand, and does not extend into Rajasthan.
Understanding the geographical features of Rajasthan, particularly the Aravali Range, is essential for comprehending the state's physical and cultural landscape. The Aravali Range is a defining feature of Rajasthan's geography and plays a crucial role in shaping the state's environment and resources.