D. He has an aerator that pumps bubbles into the tank
        
                    
             
        
        
        
Answer:
are most likely due to the fact that and are most likely due to the increased
 
        
             
        
        
        
You're gonna have to give us a picture to support your question..
 
        
             
        
        
        
Answer:
Evolution is a major force in shaping modern classification methods.
Hope it helped........... 
 
        
             
        
        
        
Answer:
The electromagnetic (EM) spectrum is the range of all types of EM radiation. Radiation is energy that travels and spreads out as it goes.the visible light that comes from a lamp in your house and the radio waves that come from a radio station are two types of electromagnetic radiation.