A vertical air current that is generated by temperature-induced density differences is an example of heat transfer by
A) advection.
B) convection.
C) conduction.
D) transmission.
E) diffusion.

Question

Quizplus · Accepted Answer

Convection is the transfer of heat through the movement of fluids (gases or liquids) due to differences in density caused by temperature variations. In this case, the vertical air current is caused by the warmer and less dense air rising and the cooler and denser air sinking, which is an example of convection.

A Vertical Air Current That Is Generated by Temperature-Induced Density