To create cave art during the upper paleolithic period, people mixed yellow and brown from with iron, to make red tones, and created black coloring from manganese or charcoal. a. alloys c. clay b. ochers d. stones

clay is the correct answer its in the arts and crafts text book. hope it helps

photography had emerged as an elite art pursued by a few creative individuals for a few wealthy patrons. but now, said bauldelaire, it was succumbing to "the great industrial madness of our times." it was becoming a mass production industry that catered to middle-class tastes, including a taste for gadgetry. the stereoscope, the first 3d imaging system, had turned looking at photographs into parlor entertainment. a "thousand hungry eyes were bending over the peepholes of the stereoscope as though they were the attic-windows of the infinite.