Question

what is the similarities and differences between terai and delta?
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Answer 1

Delta and Estuary both are made by the rivers at their mouth of sea, Delta is regarded as finest wildlife refuge and Estuaries are amongst the most heavily populated areas in the world. West flowing rivers of India does not form a Delta, they form Estuary, like Narmada and Tapti rivers.

Answer 2

Answer:

Delta: When rivers drain its water into sea or any other watercourse along with sediment at the mouth of the river