Explanation: National Highways (NH) are a network of roads in India that are maintained by the National Highways Authority of India (NHAI). These highways are designed to provide efficient and safe transportation across the country, connecting major cities and towns. In the context of Rajasthan, NH 15 is particularly significant due to its extensive coverage of the state.
NH 15 runs from Jodhpur in the west to Jaipur in the east, passing through several important cities and towns such as Bikaner, Sardarshahar, and Sikar. This highway is approximately 600 kilometers long and is a vital part of Rajasthan's transportation infrastructure. It facilitates the movement of goods and people, contributing significantly to the economic development of the state.
Understanding the network of national highways in Rajasthan is essential for several reasons:
1. **Transportation**: NH 15 plays a crucial role in connecting different parts of Rajasthan, making travel and transportation more efficient.
2. **Economic Development**: The highway supports trade and commerce by providing a reliable route for the movement of goods and services.
3. **Tourism**: NH 15 passes through several tourist destinations, making it easier for visitors to explore the state.
4. **Urban Development**: The presence of a major highway can lead to the development of urban areas along its route, as it attracts businesses and services.
It is important to note that while NH 15 is the most extensive highway in Rajasthan, other national highways such as NH 8, NH 11, and NH 14 also play significant roles in the state's transportation network. However, NH 15 stands out due to its length and the number of important cities it connects.
In conclusion, NH 15 is the correct answer because it is the national highway that covers the largest portion of Rajasthan, making it a critical component of the state's road network. Understanding the significance of NH 15 and its role in connecting different parts of Rajasthan is essential for anyone studying the geography and transportation infrastructure of the state.