to study whats in the earth's mantle, inner and outer core
the ozone layer is important because it helps block som of the ultra violet waves which cause cancer in earths species. the ozne layer is made out of 0 three.
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.
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.
The layer below the earth's outer layer is mesosphere. It is the 3rd layer.
Mantle.
Crust
The earth's atmosphere is important as it contains the life saving ozone layer. It protects the earth against the harmful UV radiations of the sun.
the earths outer layer