Question

Define the following term : (i) Duab (ii) Bhangar (iii) Bhabhar​

Answer 1

Answer:

Bhabar, bhangar, khadar and terai are the geological divisions of alluvial soils.

Bhabar: It is found in the foothills of Shivaliks. It is 8 to 16 kms wide. It comprises of pebble studded rocks and hence no rivers. It is not suitable for agriculture.

Bhangar: It covers large parts of northern plains. It is composed of old alluvial soil. It contains calcareous deposits locally known as 'Kankar'. Soil is not very fertile.

Khadar: Ii is also present in northern plains like that of Bhangar. It contains new alluvium. Used extensively for agriculture.

Terai: It is composed of comparatively finer alluvium and is covered by forests. It has underground streams and makes the area marshy. Suitable for agriculture.

Answer 2

(i) Duab:-It is a plaster, clay, or another substance used for coating a surface, especially when mixed with straw and applied to laths or wattles to form a wall.

(ii) Bhangar:- It is an old alluvial soil and has higher concentration of kankar nodules. It is comparatively less fertile.

(iii) Khadar: It is a new alluvial soil and has less concentration of kankar nodules. It is more fertile.