Q: (IAS/2021)
question_subject:
Geography
question_exam:
IAS
stats:
0,171,33,10,171,19,4
keywords:
{'black cotton soil': [1, 0, 0, 1], 'brown forest soil': [0, 0, 0, 1], 'fissure volcanic rock': [0, 0, 0, 1], 'limestone': [2, 0, 1, 0], 'shale': [1, 0, 0, 0], 'india': [8, 1, 7, 13]}
Black cotton soil, also known as regur soil or black soil, is a type of soil that is characterized by its high clay content. It is found in many parts of India and is known for its moisture-retaining properties.
Black cotton soil is formed due to the weathering of basaltic rocks, which are rich in iron, magnesium, and aluminum. As a result of weathering, the rocks break down into tiny particles, which then mix with organic matter to form black soil. The high clay content of the soil makes it swell when wet and shrink when dry, which can cause problems for agriculture and construction. However, when properly managed, black soil can be very productive for crops.