GR 6 The Earth's Atmosphere Quiz

What is the third layer of the atmosphere above the surface of Earth?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• Exosphere

What percentage of air is constituted by Nitrogen?

• 78%

• 21%

• 1%

• 50%

• 30%

What percentage of air is constituted by Other gases?

• 78%

• 21%

• 1%

• 50%

• 30%

What is the first and closest layer to the surface of the Earth?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• Exosphere

Which layer of the atmosphere protects Earth from asteroids?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• Exosphere

Which atmospheric layer absorbs much of the sun's light and radiation?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• Exosphere

What is the fifth and last outermost layer of the atmosphere?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• Exosphere

Which layer of the atmosphere is mainly filled with ozone gas?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• Exosphere

What is the coldest atmospheric layer?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• Exosphere

What percentage of air is constituted by Oxygen?

• 78%

• 21%

• 1%

• 50%

• 30%