My theory is that . Mybe it changed because the flavor composition of the cracker changed or it dissolved in the saliva.
THEORY. :'3
        
                    
             
        
        
        
Answer:
 healthy diet prevents and protects from diseases like obesity, heart disease, diabetes, cancer and stroke. constantly eating junk food can lead to obesity and chronic diseases like cardiovascular disease, type 2 diabetes, non-alcoholic fatty liver disease and some cancers.
Explanation:
 
        
             
        
        
        
True that should be the answer
        
                    
             
        
        
        
Absorb more thermal energy, and the rough surface will prevent it to reflect efficiently.