The upstairs of a house can become warmer than the downstairs because of heat transfer by

convection

conduction

radiation

dispersion

Question

The upstairs of a house can become warmer than the downstairs because of heat transfer by

 convection

 conduction

 radiation

 dispersion

roadjester · Answer

convection

anonymous · Answer

Are you sure its not radiation because definition of radiation is divergence out from a central point, in particular evolution from an ancestral animal or plant group into a variety of new forms.

lastdaywork · Answer

@victoriahofferek17 
"...definition of radiation is divergence out from a central point (source)..."