How is the atmosphere divided?

• By chemical composition

• By temperature changes

• By color

• By density

What is the lowest layer of the atmosphere?

• Stratosphere

• Mesosphere

• Troposphere

• Thermosphere

What is ozone made of?

• Two oxygen atoms

• Three oxygen atoms

• One oxygen atom

• Four oxygen atoms

Tags

NGSS.MS-PS1-1

Which layer is directly above the stratosphere?

• Troposphere

• Mesosphere

• Thermosphere

• Exosphere

Tags

NGSS.MS-ESS2-6

To what altitude does the mesosphere extend?

• 50 km

• 80 km

• 100 km

• 120 km

Which layer of the atmosphere is the coldest?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

What is the temperature in the coldest layer of the atmosphere?

• -50°C

• -73°C

• -93°C

• -113°C

What role do volcanic eruptions play in the atmosphere?

• They remove gases from the atmosphere

• They add gases to the atmosphere

• They cool the atmosphere

• They have no effect on the atmosphere

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS3-2

What happens to the atmosphere as you move closer to the Earth's surface?

• It becomes less dense

• It becomes more dense

• It remains the same

• It disappears

What is the primary effect of gravity on the Earth's atmosphere?

• It pushes the atmosphere away from the Earth

• It pulls the atmosphere toward the Earth's surface

• It has no effect on the atmosphere

• It changes the chemical composition of the atmosphere

Tags

NGSS.HS-PS2-4