Cyclones, Flooding, Drought
Telangana Open School (TOSS) · Class 12 · Geography
Complete topic list for Cyclones, Flooding, Drought in Telangana Open School (TOSS) Class 12 Geography. Key concepts, sub-topics, and what to focus on for board exams.
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Topics in Cyclones, Flooding, Drought
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.
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.
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.
Key Concepts
Central concept: Natural Disasters in India
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