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Natural and Man Made Disasters

ICSE · Class 8 · Geography

Quick revision notes for Natural and Man Made Disasters — ICSE Class 8 Geography. Key concepts, formulas, and definitions for last-minute revision.

44 questions36 flashcards5 concepts

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Key Topics to Revise

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1. Meaning and Types of Disasters

  • A disaster is a sudden, accidental event of great magnitude causing considerable damage to life and property.
  • Disasters can be grouped into three types: natural, man-made, and hybrid.
  • Natural disasters occur due to natural forces over which humans have little control.
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2. Earthquakes and Tsunami

  • An earthquake is a vibration of the earth's surface caused by the release of energy in the earth's crust.
  • Earthquakes happen along fault lines.
  • The intensity of an earthquake is measured on the Richter scale.
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3. Flash Floods and Flood Management

  • A flash flood is rapid flooding of low-lying areas such as dry lakes, rivers, and basins.
  • Flash floods may be caused by heavy rain, severe thunderstorms, hurricanes, tropical storms, or meltwater from ice or snow.
  • The 2013 Uttarakhand flash floods caused about 375% more rainfall than the normal benchmark rainfall.
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4. Man-Made Disasters and Major Examples

  • Man-made disasters result from human intent, negligence, ignorance, unawareness, illiteracy, or carelessness.
  • Reasons for man-made disasters include ignorance 52%, unawareness 20%, illiteracy 40%, and carelessness 42%.
  • These percentages do not add to 100 because more than one cause can apply at the same time.

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Full Notes

Key Concepts

A disaster is a suddenThese occur due to natural forcesAn earthquake is a vibrationTsunami is a Japanese word meaningFlash floods are rapid floods

Frequently Asked Questions

What are the important topics in Natural and Man Made Disasters for ICSE Class 8 Geography?
Key topics in Natural and Man Made Disasters include Types of Disasters — Complete Classification, Types of Disasters and Their Characteristics, Natural and Man-Made Disasters Overview. These are the concepts ICSE Class 8 examiners draw on most — study them first, then practise related questions.
How to score full marks in Natural and Man Made Disasters — ICSE Class 8 Geography?
Understand the core concepts first, then work through the 44 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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