Answer: Line art or line drawing is any image that consists of distinct straight or curved lines placed against a background, without gradations in shade or hue to represent two-dimensional or three-dimensional objects. Line art can use lines of different colors, although line art is usually monochromatic.
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Athenian society was ultimately divided into four main social classes: the upper class; the metics, or middle class; the lower class, or freedmen; and the slave class. The upper class consisted of those born to Athenian parents. They were considered the citizens of Athens.
The orchestral brass instruments are the trumpet, French horn, trombone, and tuba. As with the woodwinds, the number of each of these instruments varies depending on the size of the orchestra and the piece being played. There are usually two to five each of trumpets, horns, and trombones, and one or two tubas.:)