Answer:
This is an example of biotechnology because it seeks to solve a societal problem using biological entities.
 
        
                    
             
        
        
        
Hi!
The answer is "light wave"
Hope this helps!
-Payshence xoxo
        
                    
             
        
        
        
Hi!! I was wondering if you could somehow include the graph for the first question, that would really help me in being able to help you! 
        
             
        
        
        
The difference is very small, if it exists at all.  Please Mark Brainliest!