Chapter 17 Practice Test

Which atmospheric layer is closest to the Earth's surface?

• Stratosphere

• Mesosphere

• Troposphere

• Thermosphere

What is another name for O3?

• Nitrogen

• Ozone

• Oxygen

• Argon

Which layer of the atmosphere contains the ozone layer?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

Which layer of the atmosphere is the coldest?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

Which atmospheric layer is above the mesosphere?

• Troposphere

• Stratosphere

• Thermosphere

• Ozone

On which date does the Summer Solstice occur?

• December 21 or 22

• June 21 or 22

• September 22 or 23

• March 21 or 22

On which date does the Winter Solstice occur?

• December 21 or 22

• June 21 or 22

• September 22 or 23

• March 21 or 22

On which date does the Autumnal Equinox occur?

• December 21 or 22

• June 21 or 22

• September 22 or 23

• March 21 or 22

On which date does the Spring Equinox occur?

• December 21 or 22

• June 21 or 22

• September 22 or 23

• March 21 or 22

How many layers of the atmosphere are there?

• 3

• 4

• 5

• 6