1. Convective uplift. The hot air is less dense and it rises.
2. Orographic lifting. Air is forced to rise when it meets a mountain.
3. Convergence. Thunderstorms are caused by convergence.
4. Frontal wedging. When a cold air mass meets a warm air mass, the colder air wedges its way beneath the less dense warm air.
Mind marking this as Brainliest??