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

• Stratosphere

• Mesosphere

• Troposphere

• Thermosphere

What does the troposphere hold most of?

• The atmosphere's volume

• The atmosphere's mass

• The atmosphere's temperature

• The atmosphere's pressure

Which layer of Earth's atmosphere is the region where clouds form and where all weather happens?

• Stratosphere

• Mesosphere

• Troposphere

• Thermosphere

Tags

NGSS.MS-ESS2-5

Which layer of Earth's atmosphere contains the ozone layer?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

What does the ozone layer in the stratosphere absorb from the sun?

• Infrared rays

• Gamma rays

• Ultraviolet rays

• X-rays

Tags

NGSS.HS-PS4-4

What is the coldest layer of the Earth's atmosphere?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

What is the average temperature at the outer reaches of the mesosphere?

• -50°C

• -70°C

• -90°C

• -110°C

What is the name of the outer reaches of the mesosphere?

• Mesopause

• Mesoboundary

• Mesolayer

• Mesoterm

In which layer of Earth's atmosphere do most meteors burn up, creating shooting stars?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

Which layer of Earth's atmosphere is the hottest?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere