85%
Oceanic crust covers about 60% of the Earth's surface.
The oceanic crust covers approximately 71% of Earth's surface. This expansive underwater layer is primarily composed of basalt and forms the ocean floors, playing a crucial role in Earth's geology and ecosystems. In contrast, the continental crust, which comprises landmasses, makes up the remaining 29% of the surface.
Oceanic plate
rift
Oceanic Ridge
The largest layer of Earth's surface is the crust, which is divided into oceanic and continental crust. The continental crust is thicker and less dense than the oceanic crust, covering about 40% of the Earth's surface.
Ninety-eight percent of Antarctica is covered with an ice sheet. It's underlying landscape is mostly unknown, but it does represent 10% of the surface of the Earth.
mid-oceanic ridges
False. The Earth's radius and surface area do not increase as new oceanic crust is formed at mid-oceanic ridges. Instead, the creation of new crust at mid-oceanic ridges is balanced by the destruction of older crust at subduction zones, maintaining the overall size of the Earth.
Water covers about 70 percent of the Earth's surface.
The two types of crust that cover the Earth's surface are oceanic crust, which is thinner and denser, and continental crust, which is thicker and less dense. Oceanic crust is mainly composed of basalt, while continental crust is primarily composed of granite.
We use about 38 percent of Earth's land surface for agriculture.