Chapter 5 of 17
Revision Notes
Continents and Oceans — Revision Notes
Gujarat Board · Class 11 · Geography
Continents and Oceans revision notes for Gujarat Board Class 11 Geography: 4 topics in quick points. Part of the Gujarat Board Class 11 Geography syllabus.
44 questions20 flashcards5 concepts
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Key Topics to Revise
1
Landforms and Their Classification
- Landforms are distinct features on Earth's surface differing in shape, rock structure, height, and slope
- First order landforms: Continents and ocean basins (formed first after Earth's origin)
- Second order landforms: Mountains, plateaus, plains, rift valleys (formed by endogenic forces)
2
Distribution Characteristics of Continents and Oceans
- Total Earth's surface area: 50.68 crore square km
- Ocean area: 36.60 crore square km (71%)
- Continental area: 14.08 crore square km (29%)
3
Continental Drift Theory by Wegener
- Proposed by German meteorologist Alfred Wegener in 1912
- Pangaea: Single supercontinent existing 200 million years ago
- Laurasia: Northern part of Pangaea (North America, Europe, Asia)
4
Evidence for Continental Drift Theory
- Fossil evidence: Similar fossils found on different continents
- Geological evidence: Similar rock formations across oceans
- Climatic evidence: Coal deposits in now-cold regions
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Full NotesKey Concepts
Earth's landforms are divided into threeEarth's surface (50Proposed by Alfred Wegener in 1912Earth's outer shell consists of rigidThe Indian Plate
Frequently Asked Questions
What are the important topics in Continents and Oceans for Gujarat Board Class 11 Geography?
Key topics in Continents and Oceans include Landforms and Their Classification, Distribution Characteristics of Continents and Oceans, Continental Drift Theory by Wegener, Evidence for Continental Drift Theory. Study these first, then practise questions on each for Class 11 exams.
How should I revise Continents and Oceans for Class 11 exams?
Learn the core ideas first, then work through the 44 practice questions on Continents and Oceans. 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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