90% which is the highest percentage but remember that alcohol does not kill the virus 
        
             
        
        
        
It forms in lagoons where ocean waters high in calcium and sulfate content can slowly evaporate and be regularly replenished with new sources of water. The result is the accumulation of large beds of sedimentary gypsum. Gypsum is commonly associated with rock salt and sulfur deposits.
        
                    
             
        
        
        
It is accepted to be fact by those who accept it to be fact, until further experimentation or research can prove otherwise
        
                    
             
        
        
        
An obligatory parasite is a parasite that can not complete its life cycle without exploiting a suitable host