Saturday, 7 February 2026

 

📘 Geography Optional – Objective Paper I (Prelims)
Page–1 : Geomorphology (PYQs with Answers)


Q1. Which one of the following processes is responsible for the formation of a peneplain?

A) Volcanism
B) Glaciation
C) Fluvial erosion
D) Aeolian deposition

✅ Answer: C) Fluvial erosion

🔍 Concept: Peneplain is formed by long-term river erosion.


Q2. The concept of ‘Cycle of Erosion’ was proposed by:

A) Penck
B) Davis
C) King
D) Gilbert

✅ Answer: B) Davis

🔍 Trap: Penck focused on slope development, not cyclic erosion.


Q3. Inselbergs are most commonly associated with:

A) Humid climates
B) Glacial regions
C) Arid and semi-arid regions
D) Coastal plains

✅ Answer: C) Arid and semi-arid regions


Q4. Which geomorphic process dominates in limestone regions?

A) Mechanical weathering
B) Chemical weathering
C) Glacial erosion
D) Volcanic activity

✅ Answer: B) Chemical weathering

🔍 Leads to karst landforms.


Q5. What is the correct sequence of river stages?

A) Old → Youth → Mature
B) Youth → Mature → Old
C) Mature → Youth → Old
D) Youth → Old → Mature

✅ Answer: B) Youth → Mature → Old


Q6. Which landform is NOT formed by river erosion?

A) Gorge
B) Waterfall
C) Delta
D) Canyon

✅ Answer: C) Delta

🔍 Delta is a depositional landform.


Q7. Exfoliation is most common in:

A) Polar regions
B) Humid tropics
C) Deserts
D) Coastal plains

✅ Answer: C) Deserts


Q8. Which agent is responsible for formation of drumlins?

A) River
B) Wind
C) Glacier
D) Sea waves

✅ Answer: C) Glacier


Q9. Monadnock refers to:

A) Volcanic cone
B) Residual hill on peneplain
C) Sand dune
D) Glacial valley

✅ Answer: B) Residual hill on peneplain


Q10. Which process dominates slope retreat according to Penck?

A) Parallel retreat
B) Downwearing
C) Headward erosion
D) Vertical incision

✅ Answer: A) Parallel retreat


✅ End of Objective Paper–I | Page–1
Geomorphology Basics Covered

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