Geomorphology: UPSC Previous Year Questions (Geography)
1 previous year UPSC Prelims question on Geomorphology (Geography). Choose an option to see the answer and explanation.
Explanations state facts as of the year each question was asked; words like “recently” refer to that year.
Showing 1–1 of 1 question
UPSC 2021Geography · Geomorphology
Q1. The black cotton soil of India has been formed due to the weathering of:
Explanation
Black cotton soil, also known as regur soil, is highly valued in India because of its excellent moisture-retaining properties and suitability for cotton cultivation. Black cotton soil is primarily formed from the weathering of basaltic rocks, which are a type of fissure volcanic rock. These basaltic rocks were originally erupted during the Cretaceous period as part of the Deccan Traps in the northwest Deccan plateau. The weathering process of these volcanic rocks releases minerals that, combined with climatic factors, result in the formation of the distinctive black soil. The high clay content of black cotton soil enables it to retain moisture efficiently. Its properties make it particularly suitable for cotton cultivation, hence the alternative name "black cotton soil."
Answer key for these questions
Q
UPSC year
Correct answer
1
2021
(b) Fissure volcanic rock
Frequently asked questions
How many previous year UPSC questions are there on Geomorphology?
This page covers 1 previous year UPSC Prelims GS Paper-I questions on Geomorphology (Geography), asked from 2001 to 2025. Each has the correct answer and an explanation.
How should I use previous year UPSC questions for Prelims?
Attempt each question first, then open the answer and read the explanation for every option. Repeat by chapter, and track which statements UPSC reuses across years. Previous year questions show the exam pattern and difficulty level.
Which years are covered for Geomorphology?
Questions on Geomorphology (Geography) are available for 9 years, from 2001 to 2025. Use the Year filter to practise a single paper.
