2007-01-18 10:15:22 · 4 answers · asked by MICHAEL C 1 in Science & Mathematics ➔ Earth Sciences & Geology
The outer most layer of the earth is known as the ionosphere. It is made up of charged ionic particles from space and other light (less dense) gasses (nitrogen, helium ect.). Outside of that it is commonly known as space. From the surface up you have the lithosphere (surface), troposphere(where most of the weather occurs), stratosphere (about 10,000 ft+) and then the ionosphere, the outer most layer.
2007-01-18 10:50:09 · answer #1 · answered by Professor Kitty 6 · 0⤊ 0⤋
The crust is comprised of around 70% igneous rock, and is rich in minerals such as quartz, olivine and plagioclase.
2007-01-18 18:23:37 · answer #2 · answered by PAt S 1 · 0⤊ 0⤋
Primarily silicates (silicon and oxygen), the continental crust is rich in silicon and aluminum while the oceanic crust is rich in silicon and magnesium.
2007-01-18 18:36:32 · answer #3 · answered by lynn y 3 · 0⤊ 0⤋
Igneous and metamorphic rock.
2007-01-18 18:35:21 · answer #4 · answered by bummer101467 <2HeartKnight> 4 · 0⤊ 0⤋