The convection occurs in the troposphere because warm air rises and cool air sinks.
The continuous movement of the liquid from bottom to the top and from the top back to the bottom is known as convection current.
Convection happens because warm air is less dense than the cold air around it, so it is lighter and rises or goes up in the atmosphere while the cold air sinks.
Thus, the convection occurs in the troposphere because warm air rises and cool air sinks.
Learn more about convection current here: https://brainly.com/question/20295382