<span>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. <span>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?? </span></span>
