Answer:
it is A I tried to work it out my best have a nice day God bless you
 
        
                    
             
        
        
        
Answer: I think it‘s 1, it just makes more sense. Sorry if I am wrong but hope this helps anyone.
 
        
                    
             
        
        
        
Answer:
A. Coal
Explanation:
Coal has the potential to generate energy
 
        
             
        
        
        
Answer:
cardiovascular and blood vessals 
Explanation:
 
        
                    
             
        
        
        
Answer:
The valence electrons have a role in the bonding of two atoms. The nuclei of each atom are drawn together by their attraction to the valence electrons of the other atom. As the atoms are drawn together by their attractions, electrons from each atom are drawn to the nuclei of both atoms, where they are "shared."
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