Explanation is in the file
tinyurl.com/wpazsebu
 
        
                    
             
        
        
        
Answer:
Clause.
Explanation:
It contains a subject, "He" and a predicate/verb, "studied."
 
        
             
        
        
        
Answer:
It doesn't make the personality, but it can certainly change it.
Explanation:
Example: A poor man could be the sweetest person you know. Then, he wins the lottery and suddenly turns him from sweet to snobby. Over time, he can resort to going back to a kind personality.