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World Climate and Climate Change — Revision Notes

CBSE · Class 11 · Geography

World Climate and Climate Change revision notes for CBSE Class 11 Geography: 4 topics in quick points. Part of the CBSE Class 11 Geography syllabus.

85 questions80 flashcards5 concepts

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Key Topics to Revise

1

1. Ways of classifying climate

  • Three broad approaches are used for classifying climate: empirical, genetic and applied.
  • Empirical classification is based on observed data, mainly temperature and precipitation.
  • Genetic classification groups climates according to their causes.
2

2. Koeppen's major climate groups and types

  • Koeppen recognised five major climatic groups.
  • A, C, D and E are humid climate groups and B is the dry climate group.
  • A-Tropical climates have an average temperature of the coldest month of 18 C or higher.
3

3. Distribution of major climate groups

  • Tropical humid climates exist between the Tropic of Cancer and the Tropic of Capricorn.
  • The overhead sun and the Inter Tropical Convergence Zone make tropical humid climates hot and humid.
  • Annual range of temperature is very low in tropical humid climates and rainfall is high.
4

4. Climate change through time

  • Present climate type may have prevailed over the last 10,000 years with minor and occasional wide fluctuations.
  • The Rajasthan desert experienced wet and cool climate around 8,000 B.C.
  • The period 3,000 to 1,700 B.C. had higher rainfall.

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Full Notes

Key Concepts

Climate can be classified in threeDeveloped in 1918 by VKoeppen recognised five major groupsSmall letters describe seasonal featuresThese climates lie between the Tropic

Frequently Asked Questions

What are the important topics in World Climate and Climate Change for CBSE Class 11 Geography?
Key topics in World Climate and Climate Change include Ways of classifying climate, Koeppen's major climate groups and types, Distribution of major climate groups, Climate change through time. Study these first, then practise questions on each for Class 11 exams.
How should I revise World Climate and Climate Change for Class 11 exams?
Learn the core ideas first, then work through the 85 practice questions on World Climate and Climate Change. 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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All CBSE Class 11 Geography Revision Notes

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