Electricity because most cities use electricity. and a generator would be to loud in a city
        
             
        
        
        
Organelles(or-gahn-lś)
Specifically means little organ but is sometimes commonly used as the Rank below the tissue in the cell body..They live inside the cell taking care of most of our bigger organisms. :)
 
        
                    
             
        
        
        
Answer:
Contagious is a method in which a bloodborne pathogen may be transmitted
Explanation:
Contagious are contacted as a result of transmission through blood contact, serum, sweat among others where diseases are said to be infectious
 
        
             
        
        
        
Explanation:
The valence electrons determine the group the elements belong in the periodic table. For example, the element sodium, Na, has a valence electron of one and so it belongs to Group 1 in the periodic table. Another example is Aluminium, Al, which has a valence electron of three and therefore it belongs to Group 3 in the periodic table.