On the basis of what signs are the layers in the atmosphere separated?

The atmosphere of our Earth is formed by 5 layers of gases, namely: Troposphere (from 0m to 11.000 m (16.000m), Stratosphere (from 11.000m (16.000m) to 50.000m), Mesosphere (from 50.000m to 90.000m), Thermosphere (from 90.000m to 500.000m), Exosphere (from 500.000m to 2.000.000m – 3.000.000m).
Signs of separation of layers in the atmosphere:
1.Temperature.
2. Air density.
3. Water vapor.



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