Answer:
The overall concentration of hydrogen ions is inversely related to its pH and can be measured on the pH scale . Therefore, the more hydrogen ions present, the lower the pH; conversely, the fewer hydrogen ions, the higher the pH.
 
        
             
        
        
        
As already said, light years is the correct answer, give other peep brainiest 
        
                    
             
        
        
        
Athletes need a lot of protein and it is unhealthy for a athlete to become vegetarian Bc they don’t have anything to burn off during the sport
        
                    
             
        
        
        
Adaptation because organisms adapt to avoid extinction.