Define the art term, light. describe the purpose and importance of light.

Light is used in art to form shadows and such. Normally there is a light source, or is is a pretend light source so that it can be used. The exact definition is, "the illumination coming from a light source." It is used in art to show depth and value, as well as making an image look realistic.

Hope this helps. I felt like this needed a better answer that answered the whole question.  Also one able to be used for ed2020. Have a nice day.

all options are correct a) b) c) and d)