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.
Human hair grows an average of 1/2 inch per month. Curly hair may look shorter than straight hair but if pulled to full length it can be more accurately measured. 16 inches of growth would average 32 months. However, without any trims in between, you'd likely have terrible split ends and damaged hair.