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Which of the following rivers do not form delta ?
(i) Tapi
(ii) Narmada 
(iii) Yamuna
(iv) Ganga           
  • a)
    (i), (ii) and (iv)
  • b)
    (i) and (iii)           
  • c)
    (i) and (iv)         
  • d)
    None of the above 
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Which of the following rivers do not form delta ?(i) Tapi(ii)Narmada(i...
  • Tapi River: This river does form a delta as it flows into the Arabian Sea.
  • Narmada River: Similar to the Tapi, the Narmada also flows into the Arabian Sea but does not form a significant delta due to its steep gradient.
  • Yamuna River: The Yamuna flows into the Ganges and does not form a delta where it meets the Ganges. However, it contributes to the delta formed by the Ganges at the Bay of Bengal.
  • Ganga River: The Ganga forms a large delta known as the Sundarbans when it meets the Bay of Bengal.
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Most Upvoted Answer
Which of the following rivers do not form delta ?(i) Tapi(ii)Narmada(i...
Understanding River Deltas
Rivers form deltas when they deposit sediment as they flow into a standing body of water, such as an ocean, sea, or lake. The characteristics of the river and the geographical features of the area determine whether a delta will form.
Rivers in the Question
Let’s examine the rivers mentioned in the question:
  • Tapi: The Tapi River flows westward into the Arabian Sea and has a steep gradient which prevents the formation of a delta.
  • Narmada: Similar to the Tapi, the Narmada River also flows west into the Arabian Sea. Its fast-moving waters and geological features inhibit delta formation.
  • Yamuna: The Yamuna River, a tributary of the Ganga, does not form a substantial delta at its mouth due to its confluence with the Ganga and subsequent flow into the Bay of Bengal.
  • Ganga: The Ganga River does create a significant delta, known as the Sundarbans Delta, where it meets the Bay of Bengal.

Conclusion
Based on the analysis:
- Rivers that do not form deltas: Tapi, Narmada, and Yamuna.
- River that forms a delta: Ganga.
Thus, the correct answer is option 'A', which states that Tapi, Narmada, and Yamuna do not form deltas.
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