Id say shadowing because if you take that away you have no depth. modelling does the same sort of thing too but doesn't associate with depth as much as shadow and light can.
A Style Guide provides information about the way different sources should be cited
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Explanation:
In literature, symbolism is used to produce an impact, which it accomplishes by attaching additional meaning to an action, object, or name. ... In other words, symbolism allows a writer to convey something to their audience in a poetic way instead of saying it outright.
Answer:
Technique is the way in which an artist creates a work of art, using the media he/she decides to use. The technique and media the artist uses will change the finished results, and the messages and/or feelings it conveys to the viewer.
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