Chapter 4 of 25
Revision Notes
Climate — Revision Notes
ICSE · Class 12 · Geography
Climate revision notes for ICSE Class 12 Geography: 4 topics in quick points. Part of the ICSE Class 12 Geography syllabus.
45 questions40 flashcards5 concepts
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Key Topics to Revise
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1. Basic idea of monsoon climate
- Monsoon means seasonal reversal of winds during the course of the year.
- India’s climate changes with the season because winds, pressure, rainfall, and temperature all shift together.
- Most rainfall in India comes in the summer season when moist south-west monsoon winds blow from sea to land.
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2. Factors affecting India’s weather and climate
- India lies roughly between 6° to 37°N latitudes, and the Tropic of Cancer passes through the middle of the country.
- Southern India is closer to the Equator, so it remains warmer through the year.
- Northern India lies in the warm temperate zone and has colder winters.
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3. Theories and mechanism of monsoon
- Sir Edmund Halley explained monsoon as the result of differential heating of land and sea.
- Flohn criticized that view and explained monsoon through seasonal shift of pressure and wind belts.
- The Inter-Tropical Convergence Zone is the zone near the equator where north-east trade winds and south-east trade winds meet.
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4. Monsoon onset, advance, break, and retreat
- The south-west monsoon sets in over the Kerala coast by 1 June.
- It reaches Mumbai and Kolkata by 10-13 June.
- It spreads over the entire sub-continent by 15 July.
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Full NotesKey Concepts
India has a climate marked byIndia lies between 6° and 37°NCoastal regions have an equableThe Himalayas protect India from coldRelief affects temperature
Frequently Asked Questions
What are the important topics in Climate for ICSE Class 12 Geography?
Key topics in Climate include Basic idea of monsoon climate, Factors affecting India’s weather and climate, Theories and mechanism of monsoon, Monsoon onset, advance, break, and retreat. Study these first, then practise questions on each for the ICSE Class 12 board exam.
How should I revise Climate for the ICSE Class 12 board exam?
Learn the core ideas first, then work through the 45 practice questions on Climate. 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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