Earth's Atmosphere Quiz

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

• Exosphere

• Thermosphere

• Mesosphere

• Troposphere

At approximately what altitude does the stratosphere start?

• 10 km

• 50 km

• 85 km

• 600 km

Which layer of the atmosphere is directly above the stratosphere?

• Troposphere

• Mesosphere

• Thermosphere

• Exosphere

What is the highest layer of the atmosphere as shown in the diagram?

• Troposphere

• Stratosphere

• Mesosphere

• Exosphere

What is the purpose of the Earth's atmosphere?

• To provide a layer of gases for space exploration

• To support life on Earth by protecting it from dangerous electromagnetic radiation

• To serve as a boundary between different solar systems

• To generate electricity for the Earth's surface

Which of the following is NOT a function of the Earth's atmosphere?

• Create and control weather and climate

• Provide gases plants and animals need to breathe

• Support life on Earth by protecting it from dangerous electromagnetic radiation

• Transform the Earth's surface into a solid metal core

What is the most abundant gas in the Earth's atmosphere?

• Oxygen

• Carbon dioxide

• Nitrogen

• Argon

Which gas is the second most abundant in the Earth's atmosphere?

• Argon

• Oxygen

• Carbon dioxide

• Neon

What percentage of the Earth's atmosphere is composed of argon?

Which of the following gases is present in the smallest amount in the Earth's atmosphere?

• Oxygen

• Nitrogen

• Argon

• Carbon dioxide