The rate of flow of heat across the opposite faces of a meter cube of a substance maintained at the temperature difference of 1 kelvin is called its

The rate of flow of heat across the opposite faces of a meter cube of

1.	The rate of flow of heat across the opposite faces of a meter cube of a substance maintained at the temperature difference of 1 kelvin is called its
A.	thermal radiation
B.	flow of energy
C.	thermal conductivity
D.	convection
Answer» D. convection