Answer:
(a) Terrorism — man-made disaster. Effects: loss of many lives and injuries; damage to buildings, vehicles and public property; fear, panic and insecurity among people; disturbance of peace, transport and business, and heavy economic loss.
(b) Forest fire — natural disaster (in the textbook classification it is a biological/plant-related natural disaster; it may sometimes be started by human carelessness). Effects: large numbers of trees, birds and wild animals are destroyed; loss of biodiversity and forest wealth; air pollution due to smoke and rise in temperature; soil erosion afterwards.
(c) Theft — man-made disaster. Effects: loss of money, ornaments and valuable goods; mental shock, fear and stress to the family; feeling of insecurity in society.