Climate
CBSE · Class 9 · Social Science
Quick revision notes for Climate — CBSE Class 9 Social Science. Key concepts, formulas, and definitions for last-minute revision.
Key Topics to Revise
Climate vs Weather and Basic Concepts
- Climate refers to sum total of weather conditions over a large area for more than 30 years
- Weather refers to atmospheric conditions at any point of time over an area
- Elements of weather and climate are same: temperature, atmospheric pressure, wind, humidity, precipitation
Temperature and Precipitation Variations in India
- Summer temperatures: 50°C in Rajasthan desert, 20°C in Pahalgam (J&K)
- Winter temperatures: -45°C in Drass (J&K), 22°C in Thiruvananthapuram
- Thar Desert shows extreme daily variation: 50°C day, 15°C night
Climatic Controls - Six Major Factors
- Six major controls: latitude, altitude, pressure and wind system, distance from sea (continentality), ocean currents, relief features
- Latitude: Solar energy decreases from equator to poles due to earth's curvature
- Altitude: Temperature decreases with height, atmosphere becomes less dense
Factors Affecting India's Climate
- Latitude: Tropic of Cancer divides India - south is tropical, north is subtropical
- Altitude: Himalayas (6000m average) prevent cold Central Asian winds, coastal areas max 30m elevation
- Pressure and Winds: India lies in northeast trade wind region, but monsoon reversal makes it unique
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What are the important topics in Climate for CBSE Class 9 Social Science?
Climate covers several key topics that are frequently asked in CBSE Class 9 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Climate — CBSE Class 9 Social Science?
Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.
Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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