Concept notes: In geography, a tributary is a stream or river that flows into a larger stream, river, or lake. The Yamuna is a major river in India and has several tributaries, including the Betwa. Understanding the tributaries of major rivers is crucial for comprehending the river systems and their geographical significance.
Explanation: In the context of Uttar Pradesh Geography, understanding the river systems and their tributaries is essential. The Yamuna is one of the major rivers in India, and it plays a significant role in the geography and economy of Uttar Pradesh. A tributary is a smaller river or stream that flows into a larger river, contributing to its flow and volume.
The Yamuna has several tributaries, and among the options provided, the Betwa is the correct tributary. The Betwa River originates in the Vindhya Range in Madhya Pradesh and flows through Uttar Pradesh before joining the Yamuna. This river is significant for its contribution to the Yamuna's flow and for the agricultural and ecological support it provides to the regions it passes through.
The other options are incorrect for the following reasons:
- The Son River is a tributary of the Ganges, not the Yamuna. It flows through Madhya Pradesh and Uttar Pradesh but does not join the Yamuna.
- The Bheema River is a tributary of the Krishna River in Karnataka and is not related to the Yamuna river system.
- The Penganga River is a tributary of the Wardha River, which is part of the Godavari River system in Maharashtra, and it does not flow into the Yamuna.
Understanding the geographical relationships between rivers and their tributaries is crucial for comprehending the hydrological and ecological systems of a region. This knowledge is particularly important for students preparing for competitive examinations such as the UPSC, UPPSC, and Geography Olympiad, where questions on river systems and their tributaries are common.