Respuesta :
Answer:
Body heat is lost primarily by D. Evaporation. The correct option is 'd'.
Explanation:
The primary method by which body heat is lost is through evaporation. When we sweat, the moisture on our skin evaporates into the surrounding air, which helps to cool down our body. This process is called evaporative cooling.
During evaporation, the liquid water on our skin absorbs heat energy from our body, causing it to change from a liquid to a gas. This conversion from liquid to gas requires energy, and this energy is obtained from the body's heat, resulting in a cooling effect.
While other methods of heat transfer such as conduction, radiation, and convection also play a role in heat loss, evaporation is the most significant process for regulating body temperature.
Conduction refers to the transfer of heat through direct contact with a cooler object. For example, sitting on a cold chair or holding an ice cube would cause heat to transfer from your body to the colder object.
Radiation is the emission of electromagnetic waves that carry heat energy. Our body can radiate heat to its surroundings or absorb heat from external sources, depending on the temperature difference.
Convection involves the transfer of heat through the movement of a fluid, such as air or water. When air or water currents pass over our skin, they can carry away heat from the body.
In summary, while all of these methods contribute to heat loss, the primary way body heat is lost is through evaporation.
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