What materials do you use for sketching

Which character of art pop art in roy lichtenstein’s artwork choose all that are correct it is inspired by america it depicts by american culture it has delicate lines and detailed shapes it is printed with bold colors and shapes

The painting entitled, the old testament trinity, is an example of. art ?

Silverpoint is a. a technique using the blackish residue of impure carbon obtained by removing water from animal and vegetation substances. b. a technique involving the use of a metal point, and a thin silver wire, popular in the 14th and 15th centuries. c. a printmaking technique born from crayon manner that imitates the appearance of chalk lines. d. a technique used since the 16th century involving a stick filled with either colored or black graphite, a heated mixture of carbon and clay