Final answer:
Evaporative cooling is the mechanism Mariana's mother promoted by advising her to stay in a shaded and well-ventilated area.
Explanation:
The cooling mechanism promoted by Mariana's mother by advising her to stay in a shaded and well-ventilated area is evaporative cooling.
This process involves the evaporation of sweat from Mariana's skin, which absorbs heat in the process, thereby cooling her body down. It is a natural way for the body to regulate its temperature and prevent overheating.
Evaporative cooling is crucial in maintaining a stable body temperature, especially in hot environments, by preventing heat-related illnesses such as heat exhaustion or heat stroke.
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