STRATOSPHERE
the layer of rock that comprises 67% of earths mass
half of earths layer
The earth thinnest layer is the crust.
The crust is the thinnest layer of the Earth.
The layer of earth that makes up about two-thirds of earths mass is the inner-mantle..
Actually, the Troposphere Layer can be considered as Earth's first protective layer, because its well-the atmosphere's first layer. You can think of it that way to remember which is Earths first layer.
Lithosphere is the layer clostest to the earths crust. It is the layer that contains the sial and sima. Asthenosphere is the next layer clostest to the earths crust. Mesosphere is the inner most layer of the mantle than it goes to the core... Outer core, and inner core.I learned about it in school XD
The earths crust is a part of the outermost layer.
mesosphere
troposphere
The layer below the earth's outer layer is mesosphere. It is the 3rd layer.