Essentials of Geology Chapter 1.
The layer of the mantle that lies between 100-150 km and 350 km deep; relatively soft and can flow when acted on by force.
A layer of gases that surrounds a planet.
The dense, iron-rich center of the Earth.
The rock that makes up the outermost layer of the Earth.
The global interconnecting web of physical and biological phenomena involving the solid Earth, the hydro sphere, and the atmosphere.
The relatively rigid, non-flowable, outer 100-to-150 km thick layer of the Earth, constituting the crust and the top part of the mantle.
The thick layer of rock below the Earth's crust and above the core.
An accumulation of loose mineral grains, such as boulders, pebbles, sand, silt, or mud, that are not cemented together.
The uppermost section of the mantle, reaching down to a depth of 400 km.
The part of the Earth that has life.