Seventy-five to eighty percent of the Earth's surface is covered by a thin to thick layer of sedimentary rock.
For the most part, water is what is found on the Earths surface. This is because about 70 percent of the surface of the Earth is covered in water. The other 30 percent is made up of dirt, plants, grass and rock.
the ocean
The ocean is considered an ecosystem. 70 percent of the earth is made up of ocean water.A+-- Marine
It's the mantel.
The mantle.
30layers
Apart form the Oceans the earths surface is made of rocks.
The continents have moved, Volcanoes and mountains have made hige changes in the earths suface too.
Most of it is water, the rest is rock.
Approximately 20 percent of the Earth's atmosphere is made up of oxygen.
no, it is naturally found in hematite ore under the earths surface
Geosphere