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atmospheric circulation| Large-scale movement of air within the lower atmosphere. Warm air at the Equator rises, creating a zone of low pressure. This air moves towards the poles, losing energy and becoming cooler and denser, until it sinks back to the surface at around 30° latitude, creating an area of high pressure. At the surface, air moves from this high pressure zone back towards the low pressure zone at the Equator, completing a circulatory movement. |
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