Earth Science Unit Test 1

Which layer of the atmosphere contains the ozone layer?

• the stratosphere

• the troposphere

• the thermosphere

• the mesosphere

Clouds are formed in the troposphere layer of Earth’s atmosphere. The temperature in this layer ____________________________________ as the altitude increases. This layer is approximately between 0 to 20 km from Earth’s surface.

Read the passage about flying on an airplane.

Flying on an airplane can be very exciting. The speed of an airplane allows passengers to travel quickly. Many airplanes fly in the layer of the atmosphere where weather occurs. Weather in this layer can cause the air to feel bumpy and the plane will experience turbulence.

Which layer of the atmosphere is being described in the passage?

• the mesosphere

• the stratosphere

• the thermosphere

• the troposphere

Tags

NGSS.MS-ESS2-5

Ozone is found in the troposphere and in the stratosphere. These two layers are closest to Earth as shown in the diagram below.

Which statement correctly compares the ozone found in the troposphere to the ozone found in the stratosphere?

• Ozone found in both the troposphere and the stratosphere filters out harmful ultraviolet radiation.

• Ozone found in both the troposphere and the stratosphere is considered to be a pollutant with negative health effects.

• Ozone found in the troposphere filters out harmful ultraviolet radiation, while ozone In the stratosphere is considered to be a pollutant with negative health effects.

• Ozone in the troposphere is considered to be a pollutant with negative health effects, while ozone found in the stratosphere filters out harmful ultraviolet radiation.

What is the correct sequence of layers of the atmosphere from innermost to outermost?

• mesosphere-stratosphere-thermosphere-troposphere

• troposphere-stratosphere-mesosphere-thermosphere

• stratosphere-thermosphere-troposphere-mesosphere

• thermosphere-mesosphere-stratosphere-troposphere

What would most likely happen if Earth did not have an atmosphere?

• Humans and animals would not survive because the oxygen level would increase, but plants would survive because the carbon dioxide level would remain the same.

• Humans and animals would survive because they would have more oxygen to breathe, and plants would survive because the carbon dioxide level would increase.

• Humans and animals would survive because the oxygen level would remain the same, but plants would not survive because the level of carbon dioxide would decrease.

• Humans and animals would not survive because they would not have oxygen to breathe, and plants would not survive without the carbon dioxide provided by humans and animals.

Tags

NGSS.MS-LS2-3

How do the gases in Earth's atmosphere affect Earth's average temperature?

• They make Earth warmer by trapping heat energy in the bonds between their atoms.

• They make Earth warmer by allowing all of the Sun's rays to travel to Earth's surface.

• They make Earth cooler by decreasing the amount of precipitation formed in the atmosphere.

• They make Earth cooler by allowing most of the heat from the Sun to escape back into space.

Tags

NGSS.HS-ESS2-4

NGSS.HS-ESS3-5

Which of the following lists the gases in Earth's atmosphere from greatest to least amount?

• nitrogen, oxygen, argon, carbon dioxide

• oxygen, nitrogen, carbon dioxide, argon

• carbon dioxide, argon, nitrogen, oxygen

• argon, carbon dioxide, oxygen, nitrogen

The diagram shows information about the gases in the layers of Earth's atmosphere.
Using the diagram, how does the composition of the mesosphere protect life on Earth?

• The mesosphere burns most of the debris that enters Earth's atmosphere from space.

• The mesosphere traps the Sun's thermal energy to keep the temperature of Earth stable.

• The mesosphere contains mostly water vapor and sends rainwater down to Earth's surface.

• The mesosphere contains a layer of ozone that absorbs most of the Sun's ultraviolet radiation.

The table below shows the concentration of gases found in Earth's atmosphere.

GASES IN EARTH'S ATMOSPHERE

Gases Concentration (%)

Nitrogen 78

Oxygen 21

Other gases 1

How does the oxygen in the atmosphere help protect and support life on Earth?

• It forms nutrients for plants by condensing and falling to the ground.

• It provides the gravity that all things need to keep from floating away.

• It creates cool temperatures on Earth by reflecting the Sun's rays.

• It provides the air necessary for the survival of living organisms.