Observe the contents 1,2,3 and 4 of soil samples A,B and C shown in the graph. If the temperature and soil moisture of all soil samples are identical, which soil sample (s) will show faster decomposition? 
 
 
 a) Soil Sample A 
 b) Soil Sample B
 c) Soil Samples A and B both 
 d) Soil Sample C 
                    
            
            Solution