Earth's Atmosphere Quiz

Which layer of the atmosphere is closest to the Earth's surface?

• Mesosphere

• Troposphere

• Thermosphere

• Stratosphere

What is the region of Earth's stratosphere that absorbs most of the Sun's ultraviolet radiation?

• Ozone layer

• Troposphere

• Exosphere

• Mesosphere

In which layer of the atmosphere do meteors burn up?

• Mesosphere

• Stratosphere

• Troposphere

• Exosphere

Where does the temperature increase with height and can rise to as high as 2000ºC?

• Thermosphere

• Troposphere

• Stratosphere

• Mesosphere

What is the altitude where traditional aircraft can no longer effectively fly?

• Thermosphere

• Troposphere

• Exobase

• Kármán line

Which layer of the atmosphere has very few atmospheric molecules and can escape into space?

• Mesosphere

• Troposphere

• Exosphere

• Stratosphere

What is the lower boundary of the exosphere called?

• Tropopause

• Thermopause

• Exobase

• Exosphere

At what altitude does atmospheric temperature become nearly a constant?

• Thermopause

• Tropopause

• Exobase

• Exosphere