Answer:
It can't be learned very easily or quickly.
 
        
                    
             
        
        
        
first person point of view :)
 
        
             
        
        
        
Explanation:
Inactivated (Killed) Vaccines
Examples of inactivated vaccines include: inactivated poliovirus (IPV) vaccine, whole cell pertussis (whooping cough) vaccine, rabies vaccine and the hepatitis A virus vaccine
 
        
                    
             
        
        
        
Answer:
With a 3d answer, much like a 3d shape there is definition within the answer. What a 2d shape its just flat meaning the answer has no detail and is very plain.
Explanation:
Hope this helped! :)