Step-by-step explanation:
Convection is defined as a process in which two fluids (liquids or gases) when mixed together and heated then hot substance (less dense) rises to the top whereas cold substance (more denser) will sink at the bottom.
For example, ice in hot water is an example of convection.
Therefore, we can conclude that convection plays a role in the water cycle because hot gases or liquids rise and cooler substances sink.