The source of photochemical smog is motor vehicle exhaust, NO and VOCs, reacting with sunlight. Effects of Acid Deposition. More commonly called acid rain, acid deposition alters chemistry in soil and âmobilizesâ toxic metal ions to the soil, harming soil organisms by hindering their nutrient uptake.
The human hair IS APRROX 0.004' (four thousands of an Inch and there are 12 inches to the foot)So therefore .004 divided by 12 is your answer.
Individual strands of hair range in thickness from 1/1500 to 1/500 of an inch in diameter, depending on the properties of the hair in question. Typically, blond hair is thinnest since it usually does not have a middle layer like dark hair does. Black hair is the coarsest or thickest. Continue Reading.