Samson and the Philistine (fig. 13.5a, b, and c) by Giambologna is __________: not adhered to a wall or other surface

Which of the following is one of the three basic characteristics of line?

a. Thickness b. Color c. Implication d. Angularity

The earliest images of Saharan rock art are thought to date from at least __________ BCE

A. 7000 B. 10000 C. 8000 D. 6000