2006-08-06 21:07:40 · 8 answers · asked by Anonymous in Education & Reference ➔ Other - Education
There are blues, greens and white too, dear..
but why it is black is so that you can use chalks and the writing will appear in contrast..
2006-08-06 21:11:28 · answer #1 · answered by Cool Z 5 · 0⤊ 0⤋
So that the white chalk will show better. Greater contrast u c.
2006-08-07 04:13:12 · answer #2 · answered by Zulupiper 1 · 0⤊ 0⤋
chalk boards?
I've seen green and brown also.
2006-08-07 04:10:59 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Some are white and some are green.
2006-08-07 04:13:26 · answer #4 · answered by Angela 7 · 0⤊ 0⤋
so that the teachers don't give the poor students any opportunity to enjoy the colours of life :)
2006-08-07 09:31:11 · answer #5 · answered by sushobhan 6 · 0⤊ 0⤋
easy to make,much contrast,no maintaince.low cost
2006-08-07 04:12:21 · answer #6 · answered by doctor asho 5 · 0⤊ 0⤋
Some are not green.
2006-08-07 04:14:33 · answer #7 · answered by Robere 5 · 0⤊ 0⤋
because ,chalk is always white.
2006-08-07 04:17:38 · answer #8 · answered by wonderful 2 · 0⤊ 0⤋