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Chapter 14 of 20
Revision Notes

Climate

Himachal Pradesh Board · Class 9 · Social Science

Quick revision notes for Climate — Himachal Pradesh Board Class 9 Social Science. Key concepts, formulas, and definitions for last-minute revision.

27 questions20 flashcards5 concepts

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A comparison chart illustrating the key differences between climate and weather, including time scale, area, and elements.
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Key Topics to Revise

1

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
2

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
3

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
4

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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Full Notes

Key Concepts

Climate refers to the sum totalIndia has a monsoon type climateSix major factors control climateLatitude (Tropic of Cancer divides India)Cold weather season (Nov

Frequently Asked Questions

What are the important topics in Climate for Himachal Pradesh Board Class 9 Social Science?
Climate covers several key topics that are frequently asked in Himachal Pradesh Board 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 — Himachal Pradesh Board Class 9 Social Science?
Understand the core concepts first, then work through the 27 practice questions available for this chapter. Revise formulas and 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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