Air circulation refers to the movement of air within the atmosphere, driven by temperature differences. Warm air rises, creating low-pressure areas, while cooler air sinks, leading to high-pressure zones. This process helps distribute heat and moisture around the planet, influencing weather patterns and climate. In addition to natural processes, human activities can impact air circulation. Urban areas, with their buildings and roads, can create heat islands that alter local air movement. Understanding air circulation is essential for predicting weather changes and addressing environmental issues like pollution and climate change.