Question

On a hot summer day, heat waves can be seen rising from the asphalt. What type of heat transfer do the heat waves demonstrate?

Answer 1

There's evidence of all three types of heat transfer there:

-- The asphalt got hot in the first place by radiation heat transfer
from the sun.

-- The hot asphalt heated the air right next to it by conduction.

-- The ripples and waves that we see in the air rising from the
pavement are the hot air rising and the cooler air around it sinking ...
that's convection.

Answer 2

The correct answer is convection .