Usally biology or chemistry
        
                    
             
        
        
        
The two world wars chaos many writers, visual artists and musicians to deeply present their tragic experiences in this horrible times. These were the times where people were scared or questioned the days they have left and survival was at the top of the chart. One example of an art expression is 
Gassed, 1919, by John Singer Sargent. 
 
        
        
        
I ant see the graph scale