Because it is often difficult to gather numerical data, Qualitative information is collected.
Qualitative data describes qualities or characteristics. It is collected using questionnaires, interviews, or observation because they are generally not measurable, and are only gained mostly through observation. Narratives often make use of adjectives and other descriptive words to refer to data on appearance, color, texture, and other qualities.
Answer: a tiny muscle connected to each hair follicle and the skin. When it contracts it causes the hair to stand erect, and a "goosebump" forms on the skin.