This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
Natural disaster causing maximum deaths 
Select and explain. 
A. Hydrological, B. Meterological, C. Geological, D. Fires
A: Hydrological
Answer: A: Hydrological 
Explanation: Ans is 'a' i.e. Hydrological DisasterA "disaster" can be defined as 'any occurrence that causes damage, ecological disruption, loss of human life or deterioration of health and health services on a scale stiffly-lent to warrant an extraordinary response from outside the affected community or area'.* A "hazard" can be defined as any phenomenon that has the potential to cause disruption or damage to people and their environment. - There are many types of disasters such as eahquakes, cyclones, floods, tidal waves, landslides, volcanic eruptions, fires, snowstorms, building collapse, toxicologic accidents, and warfare, etc.* Hydrological disasters (i.e. floods, tsunamis) are associated with causing a maximum death toll. Geological disasters: includes Eahquakes, Avalanches & Volcanic eruptionsMeteorological disasters: include Cyclones, Tornadoes, Hailstorms, Drought, Heatwaves, Blizzards (Blizzards are severe winter storms characterized by low temperature, strong winds, and heavy snow).