Answer:
the minimum amount of energy that is required to activate atoms or molecules to a condition in which they can undergo chemical transformation or physical transport.
Explanation:
 
        
             
        
        
        
The answer is B and I need 20 characters so I am typing random words
        
             
        
        
        
Answer: B 
Explanation: Hope this helps :)
  
        
             
        
        
        
The right answer is: C) Iruptive Growth. For their growth is never stable.
        
             
        
        
        
Answer:
A functional group changes the structure of a compound but does not alter its chemical properties