Answer:
The mantle is approximatly 2,900 km thick and it can get to be extreemly hot!
Explanation:
 
        
             
        
        
        
A) dealing with workers who know what they’re talking about is more satisfying for clients
        
             
        
        
        
Answer:
D
Explanation:
it's the only one not before the comma
 
        
                    
             
        
        
        
Explanation:
To get a education and to become successful in life
 
        
                    
             
        
        
        
Answer:
He emphasizes the suspense of the story for the characters. 
Explanation:
As stated, dramatic irony is when the <em>reader knows more than the characters.</em> In The Open Book, Crane uses this technique by telling the story from a third person, omniscient point of view. This allows the reader to have more information than the characters do. 
For example, the moment in which the crew sees a "deserted village with dunes and empty cottages" creates suspense since the crew believes they will arrive by themselves there but actually there are a lot of people at the beach. The suspense created from this moment occurs because they are not sure where they'd go since there was no one in sight.