Between 4000 and 3000 bce, agricultural villages and cities began to emerge. all of the following new economic developments grew out of these prosperous cities, except which?
a. grain mills
b. ceramic shops
c. textile mills
d. metal workshops

The art of using and understanding space involves a. varying the size of objects or subjects, so that some are smaller than others and the illusion of depth is created. b. showing a change from light to dark in an object by darkening areas that would have a shadow. c. placing part of one shape or form in front of another. d. all of the above.