Atmosphere

What is a true fact about the mesosphere?

• it is the hottest layer
• meteors burn up here
• the ozone layer is found here
• Northern Lights happen here

How does air pressure change as you climb a mountain?

• it decreases (less air pressure)

• it increases (more air pressure)

• stays the same

• the temperature gets warmer

What protects Earth from ultraviolet rays from the sun?

• ozone layer

• mesosphere

• air pressure

• troposphere

The Northern Lights occur in which layer?

• mesosphere
• exosphere
• thermosphere
• stratosphere

What layer comes next:
Troposphere - 
stratosphere -
?????

• mesosphere
• exosphere
• thermosphere
• ionosphere

In what layer of the atmosphere would you find clouds and weather?

• troposphere
• stratosphere
• mesosphere
• thermosphere

Which statement most accurately describes the temperature trend in the Troposphere? Temperatures...

• rise with increasing altitude above the Earth
• rise then fall with increasing altitude above the Earth
• decrease with increasing altitude above the Earth
• remain constant with increasing altitude above the Earth

This is the layer where most commercial jet airliners fly.

• Troposphere
• Stratosphere
• Mesosphere
• Thermosphere

The higher you go, the air becomes _____ _____.

• More dense
• Less dense 

Today's atmosphere is mostly made up of which gas?

• Oxygen
• Carbon Dioxide
• Argon
• Nitrogen