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Multiple Choice
How does sweating help the body cool down?
A
By reducing metabolic rate, which decreases heat production
B
By increasing blood flow to the skin, which raises body temperature
C
By evaporating from the skin surface, which removes heat
D
By trapping heat within the body, preventing heat loss
Verified step by step guidance
1
Understand the process of thermoregulation: The body maintains its internal temperature through various mechanisms, one of which is sweating.
Recognize the role of sweat glands: Sweat glands produce sweat, which is primarily composed of water and salts. This sweat is released onto the skin surface.
Learn about evaporation: When sweat evaporates from the skin, it requires heat energy. This heat is taken from the body, thereby cooling it down.
Consider the effect of evaporation: The evaporation of sweat is an endothermic process, meaning it absorbs heat from the body, effectively reducing the body's temperature.
Connect the concept to the problem: Sweating helps cool the body by evaporating from the skin surface, which removes heat, rather than by reducing metabolic rate or trapping heat.