What do variations of solar radiation on the Earth's surface primarily create?

The variations of solar radiation on Earth's surface primarily create changes in weather. This is because solar radiation is the primary driver of atmospheric processes. As the Earth receives varying amounts of sunlight due to factors like the tilt of its axis and the curvature of its surface, these variations lead to differences in temperature and pressure.

This temperature difference causes air masses to move, creating wind patterns and influencing weather systems such as high and low-pressure areas, fronts, and storm systems. The interplay between temperature, humidity, and atmospheric pressure results in the dynamic nature of weather, leading to the formation of clouds, precipitation, and varied weather conditions across different regions.

While other factors play a role in climate and vegetation, the immediate effects of solar radiation on weather patterns are most significant. Seasonal climate shifts and vegetation growth patterns can also be influenced by solar radiation, but they are more long-term effects rather than the direct and immediate changes in weather. Earthquakes, on the other hand, are tectonic events primarily related to the movement of plates rather than solar radiation.