they become yellow and get some kind of smell which i think is good smell
2006-09-05 06:50:39 · 9 answers · asked by addy 2 in Environment
In paper there will be some oxidation process is going on exposure to air and moisture.
2006-09-06 23:09:31 · answer #1 · answered by dinu 3 · 0⤊ 0⤋
The exposure to air and sunlight is what turns the book pages yellow.
2006-09-06 06:12:40 · answer #2 · answered by Green Alex 3 · 0⤊ 0⤋
I guess that they become yellow after few years due to the action of microbes on them.
2006-09-08 02:31:02 · answer #3 · answered by § mǎddy § 2 · 0⤊ 0⤋
Lignin eventually turns paper yellow because of oxidation
2006-09-06 11:38:31 · answer #4 · answered by Eco-Savvy 5 · 0⤊ 0⤋
Acid in the paper.
2006-09-05 14:19:30 · answer #5 · answered by Ironball 7 · 1⤊ 0⤋
Cheap acid bleached paper...
2006-09-05 13:55:53 · answer #6 · answered by Anonymous · 0⤊ 0⤋
So that your mamma say for regular study.
2006-09-05 14:07:56 · answer #7 · answered by jidane 2 · 0⤊ 0⤋
that's why we ask yu not to study too much all the time
2006-09-06 01:22:24 · answer #8 · answered by joycyrus83 2 · 0⤊ 0⤋
if u have the habbit of taking tea ,then its aanswer is very simple.
2006-09-06 00:03:30 · answer #9 · answered by sara 2 · 0⤊ 0⤋