During an outdoor sports match on a hot afternoon, player Aarav begins to sweat heavily. How does sweating…

During an outdoor sports match on a hot afternoon, player Aarav begins to sweat heavily. How does sweating help his body?
  1. Evaporation of sweat absorbs heat from the skin, cooling the body down
  2. Sweat transfers oxygen directly to skin cells
  3. Sweat hardens the outer epidermis to protect from injury
  4. Sweat causes voluntary muscles to contract faster

Solution

When sweat evaporates from the surface of the skin, it absorbs latent heat, effectively lowering body temperature.

Asked in: Homi Bhabha Practice

Practice more Our Skeletal System and the Skin questions on Aicharya