Cave paintings have been dated in different parts of the world to at least what date?

Which of the following is necessary to build a skyscraper? a. wooden beams b. metal beams c. plastic supports d. all of the above

Which scientist listed below is not one of those to advance the study of mathematics? a. euclid b. herodotus c. pythagoras d. archimedes

Artists best achieve contrast in a composition by: a. drawing with realism b. shading a drawing with dark and light values c. using drawing techniques like stippling and hatching d. focusing on line and shape in a drawing