question_answer

Suppose, the mean body surface temperature of a certain unclothed person is \[30{}^\circ C,\] the mean temperature of surrounding surfaces is \[21{}^\circ C\] and the air within the room is at \[32{}^\circ C,\] 90 per cent RH, then the person will lose maximum body heat by:

A) Convection

B) Radiation

C) Mass transfer

D) Convection, radiation mass transfer