Question

deference between Doon & Terai​

Answer 1

Dun:- Duns are longitudinal valleys formed as a result of folding when Eurasian plate and Indian plate collided. ... Terai:- The Terai or Tarai is a lowland region in northern India and southern Nepal that lies south of the outer foothills of the Himalayas, the Sivalik Hills, and north of the Indo-Gangetic Plain.

Answer 2

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Dun:- Duns are longitudinal valleys formed as a result of folding when Eurasian plate and Indian plate collided.

Terai:- The Terai or Tarai is a lowland region in northern India and southern Nepal that lies south of the outer foothills of the Himalayas, the Sivalik Hills, and north of the Indo-Gangetic Plain.

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