Distinguish between.
a)khadar and bhangar soil.
b)Red and laterite soil.
c)Alluvial and black soil.
Answers
Answer:
a.Bhangar soils are less fertile as they are above flood level whereas Khadar soils are more fertile as they are below flood level. Bhanger is full of kankers(lime module) and khadar soil is composed of fine silt & clay
Explanation:
a)Khadar(New)Bhangar(Old) 1. The khadar soils are found in the low areas of the valley, bottom of a valley which are flooded every year.The Bhangar soils are found in higher reaches, about 30 m above the flood level. 2. These soils are finer in texture.These soils are coarser in texture. 3. The khadar is light in colour and is composed of newer deposits. 3. The bhangar is composed of lime nodules or kanker and has a clayey composition.
b)Red soilLaterite soil1. Red soil develops on crystalline igneous rocks in areas of low rainfall.1. Laterite soil develops in areas with high temperature and heavy rainfall.2. Red soil is found in parts of Odisha and Chhattisgarh, southern parts of the middle of Ganga plain and along the piedmont zone of the Western ghats.2. Laterite soil is mainly found in Karnataka, Kerala and the hilly areas of Odisha and Assam.3. Red soil develops a reddish colour due to diffusion of iron in crystalline and metamorphic rocks.3. In laterite soil, humus content is very low.
c)(i) The black cotton soil is formed by the weathering of igneous rocks and lava flow, whereas the Alluvial soil is formed by the deposition of rivers.
(ii) Alluvial soil is mostly confined to the Great Northern plains and the coastal plains and support many crops like rice and wheat. Black soil is found mostly in the northwestern part of the peninsular plateau mainly in Maharashtra and parts of Gujarat and cotton grows best in this soil.