Question

defi ition of convection radiation and conduction

Answer 1

Conduction is the mode of transfer of heat in solids......
Convection is the mode of transfer of heat in fluids.....specially in liquids...
Radiation is a mode of transfer of heat which does not need any medium to travel thus it can through the vacuum......

Answer 2

Hey Friend....Here is your answer...

Convection means the movement of heat energy through liquids and gases in currents

Radiation means the movement of energy through space as waves ; heat energy from the sun radiates through space

Conduction means the movement of heat between objects that touch each other

Hope this helps you ^_^