Question

21. Describe each of the four mechanisms that cause air to rise.(4 points)

Answer 1

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.
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