Teddy roosevelt invented the teddy bear ;)
        
             
        
        
        
The answer is a decrease in the usability of soil for agriculture.
Hope this helps!!!   :)
        
                    
             
        
        
        
It is A because it supports what is true with the paragraph
        
                    
             
        
        
        
The statement about trade in the Ghana Empire that is correct is  B. Silk was so valuable<span>in Ghana that it was worth its weight in gold.</span>