Which of the following events is categorized as a fast land change?

The event categorized as a fast land change is an earthquake. Earthquakes occur suddenly, resulting from the movement of tectonic plates beneath the Earth's surface. This rapid release of energy can cause significant alterations to the landscape in a short amount of time, including the creation of fault lines, ground shaking, and even the formation of new landforms. Because they happen quickly, they are classified as fast land changes.

In contrast, soil erosion, tree growth, and rock formation occur over much longer periods. Soil erosion is a gradual process that can take years or even centuries, resulting from factors like water and wind gradually wearing away soil. Tree growth is a slow biological process that takes years for trees to reach maturity. Similarly, rock formation is a geological process that can take thousands to millions of years, involving the accumulation and compaction of sediments or volcanic activity.