Some paper has a high amount of lignin. Lignin is part of a tree. When it is exposed to oxygen and sunlight for a long period of time, it turns yellow along with the paper.
Unless you have dye, than you can't "make" paper yellow instantly.
But you can drown it in coke but it won't do much.
Fire
Paper made from wood pulp will turn yellow with age. However it is much cheaper than paper made with cotton fibers. The paper oxidizes.
Ultra violet light makes them yellow. Newspapers use a cheap quality of paper which turns yellow very fast, but this is not condsidered a problem since it is a periodical. Books are printed with a higher quality of paper, but even their pages will turn yellow eventually.
When light shines on a yellow paper it passes through the paper and becomes yellow as the contrast of the paper is yellow hence the yellow color of the paper absorbs the light given and converts it into a yellow light.
The time it takes for paper to turn yellow can vary depending on factors such as exposure to light, heat, and humidity. In general, paper can start to yellow within a few months to a few years if not stored properly.
Yellow litmus paper turns blue in alkaline substances.
Only if you take a leak on it.
Yes, polar bear turn yellow in the summer and white in the winter.
Yes, the white area did.
yellow
Yes, white glue or yellow glue will do that.
Yes, the paper birch leaves can turn orange and yellow in the autumn, adding a vibrant display of color to the landscape before they eventually fall off the tree.