Correct Answer: Arson

Solution : The correct answer is Arson.

The deliberate act of setting any building or a premises in fire is known as Arson. It is a deliberate human act of crime or a man-made socially induced disasters because of which there is loss of life and assets. Other man made disasters are pollution, nuclear accident, explosions, accidents etc.

Natural disasters are the ones which are generated by natural forces like volcanic eruption, earthquakes, floods, hurricanes etc.