Answer:
A convection current would work in order to form wind by having a lower surface pressure. That lower surface pressure would then create a particular pressure gradient which tries to initially correct itself due to that pressure. It corrects itself by having more air going from higher pressure to lower pressure due to a rising of air.
Moreover, we can understand this by understanding convection first. As we know, convection happens when heat around the Earth is uneven. The air that we have around Earth heats up according to how the Earth revolves and how fast it heats and that particular portion of the atmosphere will initially act faster and heat up faster due to the fast spread of heat of what is under Earth.
volume increases = pressure drop
-> due to the fact that air masses do not actually mix, the amount of air remains will naturally remain constant and the volume would eventually increase, another way of saying this is - Boyle's Law.
warmer air = drop in pressure and lower pressure than the surrounding air due to the heat of air being warmer (denser than cold air).
- difference in pressure called a pressure gradient
- creates a force called the pressure gradient force -> air always wants to move from an area of high pressure to low pressure due to that gradient.
hope this helps :)