Answer:
16) David was sculpted by Michelangelo and represents at the same time the contemplative and active life.
17) Da Vinci used the linear perspective to create the illusion of depth
18) Sistine Chapel painting is an example of fresco painting
Step-by-step explanation:
I believe that is not necessary to explain deeply the question about David. The sculpture speaks for itself. However, is important to understand the linear perspective and the fresco painting style. The linear perspective uses a series of parallel lines that converge to a vanishing point, creating the sense o depth, and directing the eye to the center of the painting. It's used not only to create a sense of depth, but to highlight a moment, an important person, or an object. And the fresco painting is a technique that uses a wall as a canvas, and the ink is applied over the superficial.