<span>the deliberate modification of the characteristics of an organism by manipulating its genetic material.</span>
        
             
        
        
        
For the environmental risk, it is much better to prevent pollution than to deal with it after it has already been made. When you deal with the pollution, it is hard to say that you can eliminate completely. So, prevention is the first strategy.
        
                    
             
        
        
        
This reaction occurs in the thylakoids of the chloroplast