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a, e. Disaster and its management, , Ans : The dangerous events that occur many times in environment, and cause human, material, economic or environmental loss are, called as disasters.e.g.floods, cyclone, earthquake, etc. Disasters are, of two types natural and manmade disasters. The impact of the, disaster depends on the duration of disasters. Disaster management is, the prevention of disasters. It can be divided into two parts predisaster management and post-disaster management.