Question

DEFINE CONVECTION.......​

Answer 1

ᴄᴏɴᴠᴇᴄᴛɪᴏɴ :-

the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.

Answer 2

Convection: Heat transfer in liquid and gas by the movement of heated particles.

I hope this helps.