The Air That Surrounds the Earth

Our _________ is the layer of gases that surrounds our planet.

• ocean
• weather
• atmosphere
• ozone

In which layer of the atmosphere do we live and weather occurs?

• stratosphere
• thermosphere
• mesosphere
• troposphere

What percentage of our atmosphere is made of oxygen? 

• 1%
• 21%
• 78%
• 25%

Where is the ozone layer, which absorbs UV radiation, located in our atmosphere?

• stratosphere
• thermosphere
• mesosphere
• troposphere

Which layer of our atmosphere has no outer limits? (Hint: where satellites are located)

• ionosphere
• stratosphere
• thermosphere
• exosphere

Where would there be more pressure?

• on top of a roof of a tall building

• sitting in this classroom

• on top of a mountian

• sitting in the top row of a stadium

About how much of the atmosphere contains nitrogen?

• 1%
• 78%
• 21%
• 97%

In which layer of the atmosphere is the most water vapor found?

• thermosphere

• mesosphere

• troposphere

• stratosphere

Which layer of the atmosphere would jets fly in to avoid a thunderstorm?

• troposphere

• thermosphere

• mesosphere

• stratosphere

As you ascend (go up) in the troposphere what happens to the temperature?

• It increases steadily

• It decreases steadily