What type of materials/mediums gerhard richter use project

You know what i love about this sight when ask a dumb question it is immediately answered but when i ask a real question it takes hours to get answered

Which of these artists is particularly known for painting the madonna

Need asap ! john james audubon is an american wildlife artist. true false question 2 audubon published more than 400 prints in a book called birds of america. true false question 3 composition is the organization of the elements of art and principles of design in an arrangement that forms a whole. true false question 4 pierre-auguste renoir is know as an american impressionist painter. true false question 5 unity is the feeling of oneness or wholeness in an artwork that occurs when all the parts of a design fit together well. true false question 6 pointillism is the thick, sculptural application of paint that creates a bumpy texture that catches and reflects light. true false question 7 georges seurat is a french impressionist painter and founder of pointillism true false question 8 pointillism is a stippling technique in which an artist uses closely placed dots of various colors; from a distance, your eyes mix the colored dots in the artwork to see the illusion of a new color and the illusion of solid forms true false