Explanations:Understanding the navigable length of rivers in Indian states is crucial for assessing the potential for inland water transport and the economic benefits it can bring. The navigable length of a river refers to the portion of the river that can be used for transportation by boats and ships. This length is influenced by factors such as the river's depth, width, and the presence of obstacles like rapids or shallow areas.
West Bengal, located in eastern India, is home to several major rivers, including the Ganges and the Hooghly, which is a distributary of the Ganges. The Ganges is one of the most significant rivers in India, and its navigable length in West Bengal is substantial. The Hooghly, which flows through the city of Kolkata, is also a major navigable river. These rivers provide extensive waterways that are used for both commercial and passenger transport.
The navigable length of rivers in West Bengal is particularly important for the state's economy. The Hooghly river, for example, is a crucial artery for the port of Kolkata, one of the largest ports in India. The river's navigable length allows for the transportation of goods and people, contributing significantly to the state's economic activities.
Other states like Assam and Bihar also have important river systems, but the navigable lengths of their rivers are not as extensive as those in West Bengal. Assam, for instance, has the Brahmaputra river, which is navigable but not as long as the combined navigable lengths of the Ganges and Hooghly in West Bengal. Similarly, Bihar has the Ganges, but the navigable length within its borders is shorter compared to West Bengal.
Tamil Nadu, located in southern India, has rivers like the Cauvery, but these rivers are not as navigable or extensive as those in West Bengal. The navigable length of rivers in Tamil Nadu is limited by factors such as the river's course and the presence of dams and other structures that can affect navigability.
In summary, West Bengal's extensive river network, particularly the Ganges and Hooghly, provides the longest navigable length of rivers among the given options. This makes West Bengal a significant state in terms of inland water transport and economic activities related to river navigation.