Benchmark 3: Atmosphere Layer 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.

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

What atmospheric layer contains ozone?

• exosphere

• mesosphere

• stratosphere

• troposphere

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 atmospheric layer is at an altitude of 60 kilometers?

• mesosphere

• stratosphere

• thermosphere

• troposphere

A student reads that clouds form at a distance of around 6 km from Earth’s surface. Which statement explains the reason for the formation of clouds at this distance?

• The thermosphere has high temperatures that promote cloud formation.

• The stratosphere has ozone gas that helps in the formation of clouds.

• The troposphere has water vapor that condenses in the presence of cool air.

• The mesosphere has low temperatures that help in the condensation of water vapor.

Tags

NGSS.MS-ESS2-5

Why does the temperature of the atmosphere increase when moving upward from the troposphere to the upper stratosphere?

• Heat from the Sun is absorbed by ozone gas.

• Air in the atmosphere becomes thinner.

• Sun rays do not reach the troposphere.

• The light gets scattered in the stratosphere.

How and why does air pressure vary across the Earth’s atmospheric layers?

• Air pressure increases from the troposphere to the exosphere because the temperature of the layers increases.

• Air pressure decreases from the troposphere to the exosphere because the pull of Earth’s gravity increases.

• Air pressure increases from the troposphere to the exosphere because the temperature of the layers decreases.

• Air pressure decreases from the troposphere to the exosphere because the pull of Earth’s gravity decreases.

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

• Exosphere

• Mesosphere

• Troposphere

• Stratosphere