Answer:
it in a chromatography paper.
Explanation:
Water-based Ink is comprised of various colors, red, black, orange, blue, etc. The ink in the Fountain pen is a good example of it. There's a combination of water and specific color pigment to create the various colors. Some pigments dissolve faster in water and are drawn further up the chromatography paper with the was while the others are becoming more tied to the paper and going slower.
