* "Dirt" is subjective: What one person considers dirt might be considered soil by another. Dirt is often associated with grime, dust, or debris, while soil is a more specific term for the living, layered material that supports plant life.
* Earth's surface is diverse: The Earth's surface includes oceans, mountains, forests, deserts, glaciers, and many other environments. Each has a unique composition.
* Soil composition varies: Even in areas we consider "soil," the composition can change drastically depending on location, climate, and geological history.
Instead of trying to define "dirt," we can look at the percentage of Earth's surface covered by different types of land:
* Land: Roughly 29% of Earth's surface is land.
* Soil: While soil is essential for life, it only constitutes a thin layer of the Earth's surface.
Therefore, it's more accurate to say that "dirt," in the broadest sense, makes up a very small percentage of the Earth's total volume. However, the vast majority of Earth's surface is covered by water, not "dirt" or soil.
