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Revision Notes

Disaster Management

Gujarat Board · Class 11 · Geography

Quick revision notes for Disaster Management — Gujarat Board Class 11 Geography. Key concepts, formulas, and definitions for last-minute revision.

41 questions23 flashcards5 concepts

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Key Topics to Revise

1

Introduction to Natural Hazards and Disasters

  • Natural hazards are phenomena that cause damage to human life and economy
  • In earlier times, natural hazards were believed to result from human interference in natural processes
  • Some hazards occur abruptly (earthquakes, volcanoes) while others develop gradually (droughts)
2

Classification of Hazards

  • Hazards are classified into 6 main categories based on their origin and nature
  • Geophysical hazards: Earthquake, landslide, volcanic eruption
  • Meteorological hazards: Cyclone, storms
3

Earthquake

  • India is divided into 5 seismic zones (I to V) based on earthquake probability and intensity
  • Zone V: Highest risk - Himalayas, North Eastern States, Kachchh region of Gujarat
  • Zone IV: High risk - Delhi, Mumbai and surrounding areas, parts of peninsular plateau
4

Major Indian Earthquakes (Last Decade Data)

  • 20th October 1991: Uttarkashi (Uttarakhand) - 6.6 Richter scale
  • 30th September 1993: Latur (Maharashtra) - 6.3 Richter scale
  • 22nd May 1997: Jabalpur (Madhya Pradesh) - 6.3 Richter scale

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Full Notes

Key Concepts

Natural hazards are natural phenomena likeHazards are classified into six categoriesIndia is divided into five seismicCyclones are meteorological hazards that originateFloods occur when river flow increases

Frequently Asked Questions

What are the important topics in Disaster Management for Gujarat Board Class 11 Geography?
Disaster Management covers several key topics that are frequently asked in Gujarat Board Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Disaster Management — Gujarat Board Class 11 Geography?
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

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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