In astronomy, the interstellar medium (ISM) is the matter and radiation that exist in the space between the star systems in a galaxy. This matter includes gas in ionic, atomic, and molecular form, as well as dust and cosmic rays. It fills interstellar space and blends smoothly into the surrounding intergalactic space
 
        
                    
             
        
        
        
The answer is Negative space
        
                    
             
        
        
        
Answer:
A mixed media painting.
A painting that incorporates many different painting media and materials is classified as a mixed media painting.
I hope this helped at all.
 
        
             
        
        
        
The answer is C. Ink is added to the engraved grooves.