T3 GEOGRAPHY CH3 Natural Hazards – Understanding of Disaster Management in Practice — Social Science STD 7 — Question
Tamilnadu BoardEnglish MediumSTD 7Social ScienceT3 GEOGRAPHY CH3 Natural Hazards – Understanding of Disaster Management in Practice4 Marks
Question
Write about flood its effects and the mitigation
✓
Answer
Flood:Sudden overflow of water in a large amount caused due to heavy rainfall, cyclone, melting of snow, Tsunami or a dam burst.
Effects:
Loss of life and property
Displacement of people and
Spread of contagious diseases such as cholera and Malaria etc.,
Mitigation for flood: They include flood walls/sea walls, flood gates, levees and evacuation routes. Nonstructural measures reduce damage by removing people and property out of risk areas. They induce elevated structures, property buyouts, permanent relocation, zoning, subdivision and building codes.
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