Layers of the Atmosphere and Clouds

This gas is found in the stratosphere where it helps protect us from UV radiation.

• ozone

• oxygen

• nitrogen

• carbon dioxide

The Earth's atmosphere is divided into five layers. In which layer does all life exist?

• thermosphere

• mesosphere

• stratosphere

• troposphere

Almost 99% of Earth's atmosphere is made up of two gases. What are the two gases and the percents of each?

• 21% oxygen and 78% nitrogen

• 21% water vapor and 78% oxygen

• 21% nitrogen and 78% oxygen

• 21% carbon dioxide and 78% oxygen

Most clouds appear here, mainly because 99% of the water vapor in the atmosphere is found in the

• mesosphere

• stratosphere

• thermosphere

• troposphere

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-5

This is the layer where most commercial jet airliners fly.

• Troposphere
• Stratosphere
• Mesosphere
• Thermosphere

Which layer of the atmosphere is closest to Earth?

• Mesosphere

• Troposphere

• Thermosphere

• Exosphere

Tags

NGSS.MS-ESS2-6

As altitude increases in the Stratosphere, what happens to the temperature?

• increases

• decreases

• stays the same

• nobody knows

What main layer of the atmosphere contains the Ozone layer?

• Troposphere

• Stratosphere

• Mesosphere

• Exosphere

Which layer is just above the Stratosphere and is considered the Middle layer?

• Troposphere

• Thermosphere

• Mesosphere

• Exosphere

Tags

NGSS.MS-ESS2-6

Which layer has the coldest temperatures in the atmosphere?

• Mesosphere

• Troposphere

• Exosphere

• Thermosphere