The process of secreting moisture from sweat glands, which cools the body through evaporation.

• A. Transpiration
• B. Evaporation
• C. Sweating
• D. Dehydration

Answer: (C)

Sweating is the body’s cooling mechanism through evaporation. Here, sweat glands secrete moisture onto the skin; as that moisture evaporates, it takes heat away from the skin, lowering body temperature. This process is tightly regulated by the brain and autonomic nerves in response to heat or exertion. Other terms don’t fit: transpiration refers to plant water loss, evaporation is the general phase change without the specific secretion from sweat glands, and dehydration means a loss of body fluids rather than the cooling process itself.