Why drainage water is black in colour?

0 ⤊

no details

2006-10-11 00:48:36 · 3 answers · asked by Anonymous in Education & Reference ➔ Special Education

Because of all the silt being washed away with it? Or if it water draining off your roof, maybe you live in an area of high pollution?

2006-10-11 01:08:54 · answer #1 · answered by Anonymous · 0⤊ 0⤋

it is because the water had already gone all the way through a long pipe, which causes the water to carry some dirt that would make it looks black.

2006-10-11 07:51:58 · answer #2 · answered by Anonymous · 0⤊ 0⤋

BEcause its very very dirty...

2006-10-11 07:55:58 · answer #3 · answered by Deep 4 · 0⤊ 0⤋