Answer:
1. Line.
3. Color.
Explanation:
Lines and color are part of the element and principles used in art.
1. Line: a mark made by a pointed tool such as a brush. Also, other tools such as a stick, pen or ball point can be used to draw a line. Some of the characteristics of a line are roughness, smoothness, thickness, diagonal etc.
2. Color: one of the most dominant elements. It is considered to be one of the most dominant element of an artwork because it gives value, emphasis and beauty to them.
Some other elements and principles of art are hue, shade, proportion or scale, unity or harmony, contrast, organic, tint, texture, pattern, variety etc.
