What is the drawing technique of using dots to create degrees of shading or solidity instead of using lines?

What is “old” and what is “new” in gentile da fabriano’s adoration of the magi?

Afilm, like any other artwork, can never be totally understood and appreciated through critical analysis, no matter how complete or astute, although such analysis can open up new levels of meaning and appreciation for the sensitive viewer.

(i think my answer is a, am i correct? ) a pentagonal traffic sign is a sign. a. school crossing b. parking c. wrong way d. yield