The wool of a vicuna is finer than any other wool. the hair of this animal can be as thin as 0.000006 meters. if the average thickness of human hair is approximately 8.4 × 10-5 meters, what is the difference of the thickness of a human hair and a vicuna hair? a. 2.4 × 10-5 meters b. 2.4 × 10-6 meters c. 7.8 × 10-6 meters d. 7.8 × 10-5 meters re