Solution:
Fire, industrial accidents, wars, riots, and bomb-blast can be defined as follows:
Forest fire: Massive forest fires may start in hot and dry weather as a result of lightning or human carelessness.
Industrial accidents: Industrial accidents occur due to negligence or incompetence, which cause widespread destruction or distress and typically occur within a short time.
Vehicular accidents: Violation of road rules and carelessness cause accidents.
Terrorism: Social unrest or differences in principles lead to terrorism.
Stampede: It is a sudden rush of a crowd of people, usually resulting in injuries and death from suffocation and trampling.