Seasonal variability refers to the changes in weather patterns and environmental conditions that occur throughout the year. These changes are typically influenced by the tilt of the Earth's axis and its orbit around the Sun. As a result, different regions experience varying temperatures, precipitation levels, and daylight hours during each season, such as spring, summer, autumn, and winter. This variability affects ecosystems, agriculture, and human activities. For instance, certain crops may thrive in summer but struggle in winter, while animal behaviors, such as migration and hibernation, are also influenced by seasonal changes. Understanding seasonal variability is essential for planning in agriculture, conservation, and urban development.