a number chemicals cause a number of changes in the colour change such as phenolphathlien turns the chemicals into yellow or pink depending upon the chemical's nature to be acidic or basic.
phenolphathelein changes
acid = pink
base = yellow
chemicals
The color become pink; the cause is the formation of ions 2+.
Iodine is a poison. It can also cause skin damage. It also will cause the noodles to change to a blue black color
It causes a physical change because it just lies on the hair, on it's cuticle.
Very probable a chemical change; but also physical changes can be the cause.
Cause I told the coke to change color
Chlamydia doesn't cause hair color to change.
chlorophyll
Fish oil should not cause a change in the color of your bowels. It may affect how often you go to the bathroom.
chemicals
Aids.
The color comes from the oxidation of copper.
The minerals in the soil where the water comes from. Frequently it is copper. Iron will also cause the water to change color as will oxygen, which will cause minerals in the water to change (iron oxidizes).
cause it does
change in the composition of the gasses and the angle of refracted light
Cause he has one for a time
Stress can sometimes cause hair to turn gray. Aging can, and if u dye it.