GEOLOGY

Detailed explanation-1: -A natural hazard is the threat of an event that will likely have a negative impact. A natural disaster is the negative impact following an actual occurrence of natural hazard in the event that it significantly harms a community.

Detailed explanation-2: -The immediate effects of a natural disaster materialize through four main channels: loss of life; destruction of physical capital (e.g. housing, commercial buildings, vehicles, andc infrastructure such as roads); population displacement; and disruption of economic activity.

Detailed explanation-3: -A natural disaster may cause loss of life, injury or other health impacts, property damage, loss of livelihoods and services, social and economic disruption, or environmental damage.

Detailed explanation-4: -Natural hazards can be classified into several broad categories: geological hazards, hydrological hazards, meteorological hazards, and biological hazards.