Question

formation of red and yellow soil

Answer 1

Red soil ---- Red Loam Soil: These soils have been formed by the decomposition of granite, gneiss charnocite and diorite rocks. It is cloddy, porous and deficient in concretionary materials. It is poorer in nitrogen, phosphorus and organic materials but rich in potash. ... These soils have thin layers and are less fertile. Yellow soil ---- a soil formed under broad-leaved forests in humid subtropical regions, chiefly on parent material fromclayey shales. It has an acid reaction and low humus content, and its yellow color is caused by the presence of ferric hydroxide.

Answer 2

Answer:

Red soils develop on crystalline igneous rocks in areas of low rainfall in the eastern and southern parts of the Deccan Plateau. These soils develop a reddish colour due to diffusion of iron in crystalline and metamorphic rocks. It looks yellow when it occurs in a hydrated form.