Do you have Any answer choices
        
             
        
        
        
Introns have the non functional code
        
                    
             
        
        
        
The answere is D. Shallow ground water because it is evaporated quickly
 
        
                    
             
        
        
        
The main reason for the difference in the mass extinction occurring today and previously is the pace of the current extinction. The extinction is taking place globally and involves hundreds of species at the same time. In less than 50 years, we have lost numerous species. In contrast to this, previously during the mass extinction, only a few species were lost, and other managed to survive. But, not the status is opposite due to the magnitude of the extinction.