Interesting fact: The Earth's crust is the thinnest layer but supports all terrestrial life and human activity.
The answer: The Earth's crust weighs approximately 2.6 x 10^22 kilograms (about 2.9 x 10^22 US tons).
The Earth's crust is the outermost solid shell, varying in thickness from about 5 kilometers under oceans to up to 70 kilometers under some continents. It is composed of lighter rocks compared to the mantle and core, which makes it less dense. Despite its thinness, the crust contains all known terrestrial ecosystems and is where humans live and build civilizations.
