Chapter 10 of 31
Revision Notes
Ocean & Submarine relief — Revision Notes
Telangana Open School (TOSS) · Class 12 · Geography
Ocean & Submarine relief revision notes for Telangana Open School (TOSS) Class 12 Geography: 3 topics in quick points.
45 questions25 flashcards5 concepts
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Key Topics to Revise
1
Ocean Basins
- There are five major oceans: Pacific, Atlantic, Indian, Antarctic (Southern), and Arctic Oceans.
- The Pacific Ocean is the largest and deepest, covering about 46.6% of the ocean area.
- Oceans are interconnected and form a continuous body of water around the globe.
2
Major Submarine Relief Features
- Continental Shelf: Gently sloping, shallow part of the continent submerged under seawater, up to 200 m deep.
- Continental Slope: Steep slope connecting the shelf to the deep ocean floor, depth from 200–2000 m.
- Abyssal Plain: Vast, flat, deep-sea floor between 2000–6000 m, covered with fine sediments.
3
Minor Submarine Relief Features
- Mid-Oceanic Ridges: Underwater mountain ranges formed at divergent plate boundaries.
- Seamounts: Volcanic mountains rising from the ocean floor but not reaching the surface.
- Guyots: Flat-topped seamounts eroded by waves and submerged.
Get complete notes with diagrams and examples
Full NotesKey Concepts
Ocean basins are largeThe continental shelf is the gentlyThe continental slope is the steepThe abyssal plain is a flatOceanic deeps
Frequently Asked Questions
What are the important topics in Ocean & Submarine relief for Telangana Open School (TOSS) Class 12 Geography?
Key topics in Ocean & Submarine relief include Ocean Basins, Major Submarine Relief Features, Minor Submarine Relief Features. Study these first, then practise questions on each for the Telangana Open School (TOSS) Class 12 board exam.
How should I revise Ocean & Submarine relief for the Telangana Open School (TOSS) Class 12 board exam?
Learn the core ideas first, then work through the 45 practice questions on Ocean & Submarine relief. Revise definitions regularly and use flashcards for quick recall before the exam.
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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