Roadmap for Answer Writing: Introduction Briefly introduce the dominance of Vedic practices in pre-6th century BCE India. Mention the emergence of heterodox movements like Buddhism and Jainism in response to opposition to orthodox Brahmanical ideas. Socio-Religious Factors Discuss the impact of the Varna system on ...
Model Answer The drainage system of the Himalayas has been significantly shaped by the natural process of river piracy, also known as stream capture or stream diversion. This occurs when one river captures the flow of another by headward erosion or lateral erosion. The Role of River Piracy in the HiRead more
Model Answer
The drainage system of the Himalayas has been significantly shaped by the natural process of river piracy, also known as stream capture or stream diversion. This occurs when one river captures the flow of another by headward erosion or lateral erosion.
The Role of River Piracy in the Himalayas
River piracy has been a driving force in developing the Himalayan drainage system, especially in its youthful stages. During this time, rivers engage in headward erosion, lengthening their valleys and shifting water divides. More powerful rivers, with higher gradients and greater kinetic energy, can capture weaker rivers.
Notable Examples of River Capture
- Yarlung Tsangpo and the Brahmaputra: The Yarlung Tsangpo River was captured sequentially by the paleo-Red, Irrawaddy, and Lohit Rivers before it was finally captured by the Brahmaputra. This process showcases how river piracy has redirected the flow of major rivers in the region.
- Arun Kosi and Phung Cho: The Arun Kosi, a tributary of the Kosi River, captured Phung Cho, a tributary of the Tsangpo (upper Brahmaputra). This is another example of headward erosion leading to river capture.
- Bhagirathi and Vishnuganga: The Bhagirathi and Vishnuganga rivers, head tributaries of the Ganga, captured tributaries of the Sutlej River, further altering the drainage network.
- Saraswati River Deviation: It is believed that the deviation in the course of the Saraswati River was caused by river piracy, with the Yamuna River capturing its flow through headward erosion.
Current Examples and Future Possibilities
The Song River, a tributary of the Ganga, may eventually capture the Asan River, redirecting the upper Yamuna’s course into the Ganga. This illustrates how river piracy is still active in the region today.
Thus, river piracy has played a crucial role in forming the Himalayan drainage system, shaping the course of rivers over time.
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Model Answer Buddhism and Jainism in 6th Century BCE India Socio-Religious Factors Varna System: Post-Vedic society's division into varnas accentuated social tensions, prompting calls for alternative social structures. Caste Discrimination: Hierarchical caste norms based on 'purity and pollution' foRead more
Model Answer
Buddhism and Jainism in 6th Century BCE India
Socio-Religious Factors
Economic Factors
Conclusion
Buddhism and Jainism emerged in the 6th century BCE India as responses to evolving societal and economic circumstances, attracting followers across various societal strata. These religions symbolized the transformation of Indian society, marking a departure from traditional Vedic practices.
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