<span>The correct answer is A. the results of a scientific study would be the most effective evidence. Thoughts and opinions are not valid for scientific studies because they are based on emotions and personal values. Ethics also have a problematic effect on science because values and morals are often different from society to society.</span>
        
                    
             
        
        
        
Answer:
Antonyms 
Explanation:
Light is opposite of dark. Antonyms mean opposite of each other. 
 
        
                    
             
        
        
        
Answer:
If injustice occurred/people have been treated unfairly, revolution is justified.
Explanation:
Basically if people were treated unfairly, you would feel wronged revolution is justified so basically he felt unjust