Layers of the Atmosphere Quiz

Which layer of the atmosphere is closest to Earth?

• Exosphere

• Thermosphere

• Mesosphere

• Troposphere

Which layer of the atmosphere is the highest?

• Troposphere

• Stratosphere

• Mesosphere

• Exosphere

Where are the International Space Station (ISS) and most satellites located in the atmosphere?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

What is the composition of the Earth's atmosphere?

• Nitrogen, Oxygen, Argon, and other gases

• Hydrogen, Helium, Methane, and Neon

• Carbon Dioxide, Oxygen, Nitrogen, and Helium

What are the layers of the Earth's atmosphere?

• Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere

• Lithosphere, Hydrosphere, Biosphere, Atmosphere

• Crust, Mantle, Outer Core, Inner Core

• Troposphere, Mesosphere, Ionosphere, Exosphere

What is the primary purpose of the Earth's atmosphere?

• To provide a layer for aircraft to fly

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

• To serve as a space for satellites to orbit

• To act as a boundary between Earth and space

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

• Oxygen

• Carbon dioxide

• Nitrogen

• Argon

Which gas makes up approximately 21% of the Earth's atmosphere?

• Argon

• Oxygen

• Carbon dioxide

• Neon

Which group of gases makes up 0.17% of the Earth's atmosphere?

• Neon, methane, krypton, hydrogen

• Oxygen, nitrogen, argon, carbon dioxide

• Carbon dioxide, argon, neon, krypton

• Hydrogen, oxygen, nitrogen, methane

Which gas is primarily removed from the atmosphere by bacteria and lightning?

• Oxygen (O)

• Carbon dioxide (CO₂)

• Water vapor (H₂O)

• Nitrogen (N)