Earth's Atmosphere

What is the lowest layer of Earth's atmosphere called?

• Stratosphere

• Troposphere

• Mesosphere

• Thermosphere

Which gas makes up the largest percentage of Earth's atmosphere?

• Oxygen

• Carbon Dioxide

• Nitrogen

• Argon

What is the second layer of Earth's atmosphere from the surface?

• Mesosphere

• Stratosphere

• Thermosphere

• Exosphere

Which layer of the atmosphere contains the ozone layer?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

What percentage of Earth's atmosphere is oxygen?

• 21%

• 78%

• 1%

• 0.03%

Which layer of the atmosphere is known for having the coldest temperatures?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

What is the primary component of the air we breathe?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Argon

Which layer of the atmosphere is the farthest from Earth's surface?

• Troposphere

• Stratosphere

• Mesosphere

• Exosphere

Tags

NGSS.MS-ESS2-6

What is the main function of the ozone layer in the atmosphere?

• To provide oxygen

• To block harmful UV radiation

• To trap heat

• To produce nitrogen

Which gas is a trace component of Earth's atmosphere but is crucial for photosynthesis?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Argon

Tags

NGSS.MS-LS1-6