Question

1. What kind of heat transfer warms your hands when you hold them by a fire

Answer 1

thermal energy

Answer 2

thermal radiation

Answer 3

theo1 is right.

There are three kinds of heat transfer:

1. Radiation
2. Convection
3. Conduction

And radiation is the kind of heat transfer that we feel, when we're sitting in front of a fire.
It's the same kind of heat transfer that the sun uses, to warm the earth.