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Cyclones, Flooding, Drought

Telangana Open School (TOSS) · Class 12 · Geography

Quick revision notes for Cyclones, Flooding, Drought — Telangana Open School (TOSS) Class 12 Geography. Key concepts, formulas, and definitions for last-minute revision.

47 questions25 flashcards3 concepts

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Key Topics to Revise

1

Cyclones

  • Cyclones are strong winds rotating around a low-pressure area.
  • They form over warm tropical oceans with sea surface temperature above 27°C.
  • India faces cyclones mainly in October–November and April–May.
2

Floods

  • Floods occur when rivers or coasts overflow due to excessive water.
  • About 12% of India’s land (over 40 million hectares) is flood-prone.
  • Main causes: heavy rainfall, sediment deposition, deforestation, cyclones, and poor drainage systems.
3

Drought

  • Drought is a slow-onset disaster caused by prolonged lack of rainfall.
  • About 70% of India’s area is drought-prone.
  • Main causes: rainfall scarcity, deforestation, overuse of groundwater, and loss of water bodies.

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Full Notes

Key Concepts

Cyclones are strong winds that rotateFloods happen when rivers overflow dueDrought is a long period

Frequently Asked Questions

What are the important topics in Cyclones, Flooding, Drought for Telangana Open School (TOSS) Class 12 Geography?
Cyclones, Flooding, Drought covers several key topics that are frequently asked in Telangana Open School (TOSS) Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Cyclones, Flooding, Drought — Telangana Open School (TOSS) Class 12 Geography?
Understand the core concepts first, then work through the 47 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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