Earth Science Q4: Test #1 Review

Which layer of the atmosphere extends from around 31 to 50 miles high?

• mesosphere

• thermosphere

• stratosphere

• troposphere

Astronauts begin to experience weightlessness in which layer of the atmosphere?

• mesosphere

• exosphere

• stratosphere

• thermosphere

The exosphere contains items such as:______________

• Auroras

• Satellites

• Commercial jets

• People

Auroras are located in the _____________.

• exosphere

• Troposphere

• Mesosphere

• Thermosphere

Which layer of the atmosphere is considered one of the coldest places on Earth?

• Endosphere

• Troposphere

• Mesosphere

• Exosphere

In the stratosphere, the air temperature ___________ the higher you go.

• Decreases

• Increases

• Stays the same

In the troposphere, the temperature of the air ________________ the higher you go.

• Increases

• Decreases

• Stays the same

The stratosphere is home to which of the following?

• The ozone layer

• The karman line

• The exobase

• The moon

The air we breathe consists of what percentage of nitrogen?

• 78.09%

• 20.95%

• 0.93%

• 0.039%

The air we breathe consists of what percentage of carbon dioxide?

• 78.09%

• 20.95%

• 0.93%

• 0.039%