Answer:
- Duns alludes to the longitudinal valley which lies between lesser Himalayas and the Shivalik. Another name for Duns is Dims. Duns is utilized as a neighbourhood word to address valley, by and large, it alludes to an open valley.
- These are narrow in shape and mostly consist of alluvial soil.
- Large valleys that can be approximately 8-12 kms wide and around 45-55 kms long.
- Have an abundant variety of birds i.e., more than 450 species.
- The alluvial soil avails the farming and helps the farmers in order to grow more and more types of crops.
Some examples are: DehraDun (largest Dun), Kotli Dun, and Patli Dun.