Question

what is convection?

Answer 1

convection occurs in liquid in this process molecules move from hotter to cooler molecules take heat with them

Answer 2

Hi mate here is your answer

Convection is the process by which heat travels through air, water, gases and liquids.

1) a process of heat transfer through a gas or liquid by bulk motion of hotter material into a cooler region.

2) metrology
the process by which masses of relativity warm air are raised into the atmosphere, often cooling and forming cloud, with compensatory downward of cooler air.

3) geology
the slow circulation of subrustal material, thought to be mechanism by which tectonic plates are moved.

I hope this will help you