The best answer here would be pencil.
Artists use pencil to make sketches and create studies. They then use these sketches and studies to create their final larger piece. They use pencil because it's quick, can be corrected, lightweight and easy to use. Before pencils artists would make charcoal drawings but once we had pencils it made sense to use them as they aren't messy like charcoal.
As an adhesive for two materials that aren't too smooth.
Mary Cassatt did study with <span> Edgar Degas.
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Answer:
Space
Explanation:
Space is the area in which an artwork is organized, and encompasses both what is inside and what is immediately outside, or around, the work. Space can be filled on a page, a canvas, in a room or outdoors, and it is inherent in any physical artwork.
The use of space and the way it is transformed play a role in conveying a creative message.