That dose look good. I would take out from "...or based on facts". Art is mainly based off of opinion. I would say that "Art and what it has done has changes the world greatly." 
Hopes this helps.
 
        
             
        
        
        
Answer:
verizon has more advertising than At&T
 
        
                    
             
        
        
        
Answer: Depends..
Explanation: Could you provide the excerpt from the speech in question? You can do this through screenshot, comment, or editing the post. Doing so will help you effectively get the answers you need.
Hope this helps!
 
        
             
        
        
        
<span>One concern about internet advertising is that viral marketing mainly
depends on the dissemination of different types of information by word-of-mouth.
It’s one popular source of details or sets of data considered as essential to
people reacting to it. However, the need to gain positive feedbacks from
audience is the core element of this type of marketing.</span>