Earth's Atmospheric Layers Quiz

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

• Stratosphere

• Troposphere

• Mesosphere

• Thermosphere

In which layer of the atmosphere do most commercial airplanes fly to avoid turbulence?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

Which layer of the Earth's atmosphere contains the ozone layer that absorbs and scatters the solar ultraviolet radiation?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

In which layer of the atmosphere do meteors burn up upon entry due to friction with the air molecules?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

Which layer of the Earth's atmosphere extends from the top of the thermosphere to 10,000 km (6,200 miles) above the Earth?

• Troposphere

• Stratosphere

• Mesosphere

• Exosphere

What is the primary gas found in the Earth's troposphere?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Argon

At what altitude does the stratosphere start?

• 10 km (6 miles)

• 50 km (31 miles)

• 85 km (53 miles)

• 100 km (62 miles)

Which layer of the atmosphere is the coldest?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

The thermosphere is known for:

• Containing the ozone layer

• Being the layer where weather occurs

• Having very high temperatures

• Being the layer closest to Earth

What phenomenon is primarily observed in the thermosphere due to the interaction of solar radiation with atmospheric gases?

• Rainbows

• Northern and Southern Lights (Auroras)

• Cloud formation

• Ozone layer formation