World Geography
Slate is an example of:

Igneous rock
Intrusive igneous rock
Metamorphic rock
Sedimentary rock

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World Geography
The sequence of layers of atmosphere from earth to upwards is

troposphere, tropopause, stratosphere, mesosphere , exosphere, thermosphere, thermopause
troposphere, tropopause, stratosphere, thermosphere, exosphere
troposphere, stratosphere, stratopause, mesosphere , ionosphere
troposphere, tropopause, stratosphere, stratopause, mesosphere, mesopause, ionosphere(thermosphere, thermopause, exosphere)

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