Fasciae are layers of connective tissue, mainly collagen, situated under the skin, which closes, supports, and separates muscles and other structures. Fasciae are grouped by their anatomical location, layer (as visceral fascia, superficial fascia, and deep fascia), or by their functions. Fasciae reduces friction and provide an adjustable covering for nerves and blood vessels as they move through muscles.
Because the group of small cells would have a greater surface area-to-volume ratio, so they are able to exchange materials with their surroundings more efficiently.
More information from the question is needed to be sure but I assume it would be that it is more effective than scented or moisturizing hand soap that is not designed to specifically kill bacteria.
A. A steep positive slope. Since the speed is going UP, it is positive. Since it is happening quickly, the line will jump steeper. Hope that helps!