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Getting a fan and setting it to blow over the patient will be the most appropriate action by the professional who is trying to lower a patient's body temperature by convection.

Convection is spontaneous single- or multi-phase fluid flow due to the combined effects of material property inhomogeneities and body forces, most commonly density and gravity (see buoyancy). If the cause of convection is unknown, convection due to thermal expansion and buoyancy can be considered. Convection can also occur in soft solids or mixtures in which particles flow.

Convection can be transient (eg when a multiphase mixture of oil and water separates) or stationary (see convection cell). Convection can be due to gravitational, electromagnetic, or fictitious body forces. Heat transfer by natural convection plays a role in the structure of the Earth's atmosphere, oceans, and mantle. Discreet convection cells in the atmosphere can be seen through clouds, and stronger convection leads to thunderstorms. Natural convection also plays a role in stellar physics. Convection is often categorized or described by the main effects that cause it. Example - Thermal convection.

Learn more about Convection  here : https://brainly.com/question/9382711

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