Submarine Relief of Indian & Pacific Ocean | 20 Marks Model Answer | UPSC Geography Optional

Submarine relief / bottom topography of the Indian Ocean and Pacific Ocean explained through a 20-mark model answer for UPSC Geography Optional.
You can directly reproduce this answer in the real exam with diagrams.

Submarine Relief of Indian & Pacific Ocean | 20 Marks Model Answer | UPSC Geography Optional

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Hello Vimochana Family

In this lecture, we discuss a complete 20-mark MODEL ANSWER on Submarine Relief / Bottom Topography of the Indian Ocean and Pacific Ocean, written exactly in UPSC Geography Optional exam format.

This video helps students:

Write full 20-mark answers confidently
Draw quick, exam-ready diagrams
Understand tectonic logic behind ocean floor features

Topics Covered:

Submarine relief of the Pacific Ocean
(trenches, island arcs, East Pacific Rise, seamounts)
Submarine relief of the Indian Ocean
(mid-oceanic ridges, triple junction, plateaus, basins)
Plate tectonic explanation of ocean floor configuration
Model answer structure for 15–20 marks


📌 PYQs covered indirectly:

Configuration of Pacific Ocean floor
Bottom topography of Indian Ocean (with sketches)

✨ This lecture is NOT integrated with GS/Prelims – it is purely Geography Optional level, with thinkers, keywords, diagrams, and exam-ready notes.

📌 What you’ll gain:
Clear concepts with flowcharts, maps, and keywords
Integration of Paper-1 with Paper-2
Content you can directly reproduce in the Mains exam


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👉 Watch the full module here:

Previous Video :-    • Bottom Topography : Pacific Ocean & Indian...  

Oceanography Geography module :    • MODULE 4 : Oceanography  

Population Geography module -    • Module 7 - Population Geography  

Perspective Module:    • MODULE 6 : Perspectives in human Geography  

Climatology Module – climatology :    • MODULE 3 : CLIMATOLOGY  

Geomorphology Module :    • Module 2: Geomorphology | Geography option...  


UPSC CSE 2026 Focus
This lecture is fully aligned with UPSC Mains (Geography Optional) syllabus. No integration with GS/Prelims—only pure optional material, exam notes, and past year questions.

🎯 Perfect for:
UPSC CSE aspirants with Geography Optional
Students preparing Oceanography module in detail

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