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.
Average Human Hair Diameter. The average human hair diameter is 99 um. A single um is equal to one millionth of a meter. It is also equivalent to one thousandth of a millimeter (0.001 mm).In inches, the diameter would be 0.001.rowth. No matter what the average human hair diameter is, human scalp will typically grow at 0.4 mm daily. Human scalp growth is four times quicker compared to human nails. This assumes that the human body is in good condition.