Which process involves air particles being warmed and rising?

The process that involves air particles being warmed and subsequently rising is convection. Convection is a mechanism of heat transfer where warmer, less dense air rises, and cooler, denser air sinks. This movement creates a cycle known as a convection current, which is essential for understanding weather patterns and phenomena such as thunderstorms and clouds.

In the context of the atmosphere, as the sun warms the Earth's surface, the air directly above it also warms up. When this air becomes warm enough, it loses density relative to the cooler air surrounding it, leading it to rise. As it ascends, it can cool down, which is integral to cloud formation and weather systems.

Conduction, on the other hand, refers to the transfer of heat through direct contact between materials, rather than through the movement of air. Radiation involves the transfer of energy through electromagnetic waves and does not require a medium, such as air, to occur. Evaporation is the process by which liquid turns into vapor, involving energy absorption but not relating to the movement of air particles in the same manner as convection.