* Conduction is the transfer of heat through direct contact between molecules. This happens when a warmer object or substance transfers heat to a cooler one through collisions at the molecular level. Think of a hot pan transferring heat to your hand when you touch it.
* Gases in the atmosphere circulate primarily due to convection. Convection is the transfer of heat through the movement of fluids (liquids or gases). In the atmosphere, warmer, less dense air rises, while cooler, denser air sinks. This creates air currents that distribute heat around the planet.
In summary: Conduction involves direct contact and molecular collisions, while gas circulation in the atmosphere is driven by convection, which relies on the movement of fluids due to temperature differences.
