UPSC Prelims 2021 · Question 64 of 97
UPSC Prelims 2021 question on Black Cotton Soil
- ExamUPSC CSE
- Year2021
- PaperGeneral Studies Paper I
- SubjectGeography
- TopicIndian Geography
- DifficultyEasy
- TypeDirect
The black cotton soil of India has been formed due to the weathering of
Show answer
Answer: B. fissure volcanic rock
Black soils are mineral soils which have a black surface horizon, enriched with organic carbon that is at least 25 cm deep. Black soil is formed due to the weathering or erosion of the basalt rocks.
Basalt is an aphanitic extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron exposed at or very near the surface.
The black soil in India is found in the states like Maharashtra, Gujarat, Madhya Pradesh, and Karnataka.
Hence, option (b) is the correct answer.