1. 1. How many layers are there in Earth’s atmosphere
1. How many layers are there in Earth’s atmosphere? List them in order of increasing altitude.

2. Troposphere Temperature: Atmospheric Pressure: Water Vapor:
As altitude increases, temperature decreases.
As altitude increases, atmospheric pressure decreases.
As altitude increases, water vapor content decreases.

3. Stratosphere Temperature: Atmospheric Pressure: Water Vapor:
As altitude increases, temperature increases.
As altitude increases, atmospheric pressure decreases.
As altitude increases, water vapor decreases and reaches zero.

4. Mesosphere Temperature: Atmospheric Pressure: Water Vapor:
As altitude increases, temperature decreases.
As altitude increases, atmospheric pressure decreases and approaches zero.
There is no water vapor in this layer.

5. Thermosphere Temperature: Atmospheric Pressure: Water Vapor:
“Pause” = break between layers
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Temperature:
Atmospheric Pressure:
Water Vapor:
As altitude increases, temperature increases.
As altitude increases, atmospheric pressure decreases and approaches zero.
There is no water vapor in this layer.