The answer is 99.9 percent.
        
             
        
        
        
The Answer is the Intertidal Zone
 
        
                    
             
        
        
        
Prairie dogs create a safe home for their young by creating underground burrows.
        
                    
             
        
        
        
Fire naturally occurs in a grassland ecosystem and it helps the environment stay healthy and strong. I promotes richer soil as well as gets rid of excess leaves scattered around. After a fire, grassland ecosystems can grow again and be better than they were before.