In digital photography, the equivalent of grain is called?

When you shoot using the lowest number possible for your aperture what is it called

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

Is art made by people who are not trained to be artists, but learn to make art by watching other people or by touching themselves