Earth's crust characteristics

Earth's crust is the outermost layer of our planet, composed of solid rock and minerals. It varies in thickness, being about 5-70 kilometers deep, with oceanic crust generally thinner than continental crust. The crust is divided into tectonic plates that float on the semi-fluid mantle beneath. These plates constantly move, leading to geological events like earthquakes and volcanic eruptions. The crust is rich in resources such as metals and minerals, and it supports all life forms, providing soil for agriculture and habitats for wildlife. Overall, it plays a vital role in Earth's geology and ecosystems.