Atmosphere and Composition Test Review

Which gas of the Earth's atmosphere is classified as a greenhouse gas?

• argon (Ar)

• carbon dioxide (CO₂)

• nitrogen (N₂)

• oxygen (O₂)

How does the ozone layer help life on Earth?

• It produces oxygen for the atmosphere.

• It protects Earth from meteors.

• It absorbs damaging ultraviolet radiation from the Sun.

• It reflects most of the Sun's radiation to keep the planet cool.

Where does the greatest atmospheric pressure occur?

• mesosphere

• stratosphere

• thermosphere

• troposphere

When a person climbs a mountain, what happens to the air pressure around him?

• It decreases.

• It increases.

• It remains constant.

• It decreases, then increases.

Why does all weather occur in the troposphere?

• Water vapor condenses and precipitates before it can escape the troposphere.

• Temperatures are warmer in the troposphere than other layers.

• The ozone layer protects the troposphere from radiation.

• The troposphere is the largest, most stable layer with fewer wind currents.

Tags

NGSS.MS-ESS2-5

Air pressure changes across the different layers of the atmosphere. Which option sequences the atmosphere's layers in increasing order of atmospheric pressure?

• troposphere, stratosphere, mesosphere, thermosphere, exosphere

• troposphere, stratosphere, thermosphere, mesosphere, exosphere

• exosphere, mesosphere, thermosphere, stratosphere, troposphere

• exosphere, thermosphere, mesosphere, stratosphere, troposphere

What atmospheric layer contains ozone?

• exosphere

• mesosphere

• stratosphere

• troposphere

Which is the correct sequence of atmospheric layers from lowest altitude to highest?

• mesosphere, troposphere, thermosphere, stratosphere, exosphere

• troposphere, stratosphere, mesosphere, thermosphere, exosphere

• exosphere, troposphere, stratosphere, mesosphere, thermosphere

• stratosphere, mesosphere, troposphere, exosphere, thermosphere

What are the two most common gases found throughout the atmospheric layers?

• carbon dioxide and oxygen

• ozone and water vapor

• nitrogen and oxygen

• carbon dioxide and nitrogen

Which layer of the atmosphere contains the highest percentage of water vapor?

• exosphere

• mesosphere

• stratosphere

• troposphere