Atmospheric Layers

Multiple Choice

Which gas makes up the largest percentage of dry air by volume?

• Oxygen

• Argon

• Nitrogen

• Carbon dioxide

Multiple Choice

Which layers of the Earth's atmosphere are located between the troposphere and thermosphere?

• Stratosphere and Mesosphere

• Exosphere and Mesosphere

• Stratosphere and Exosphere

• Mesosphere and Exosphere

Multiple Choice

Which of the following statements about the thermosphere is correct?

• Temperature decreases with altitude in the thermosphere.

• The thermosphere is the coldest layer of the atmosphere.

• The thermosphere readily absorbs solar radiation.

• The thermosphere contains the ozone layer.

Fill in the Blanks

Temperature in the thermosphere can reach as high as

°C.

Multiple Choice

Which atmospheric layer is directly above the stratosphere?

• Troposphere

• Mesosphere

• Thermosphere

• Exosphere

Multiple Select

Which of the following statements about the mesosphere is/are correct?

• It extends to almost 80 km high.

• Gases in this layer absorb a lot of UV radiation.

• Temperature increases as altitude increases.

• Gases are less dense than in the troposphere.

Fill in the Blanks

The region of Earth's atmosphere that contains a high concentration of ions and free electrons is called the

.

Multiple Choice

Which atmospheric phenomenon is the ionosphere responsible for when charged solar particles collide with atmospheric gases?

• Rainbows

• Auroras

• Lightning

• Cloud formation

Multiple Choice

Which atmospheric layer contains the ozone layer and experiences an increase in temperature with altitude?

• Stratosphere

• Troposphere

• Mesosphere

• Thermosphere

Multiple Select

Select all correct statements about the boundaries between atmospheric layers.

• The boundary between the troposphere and stratosphere is called the tropopause

• The boundary between the stratosphere and mesosphere is called the stratopause

• The boundary between the mesosphere and thermosphere is called the mesopause

• The boundary between the troposphere and mesosphere is called the mesopause

Multiple Choice

Which of the following statements about the troposphere is correct?

• It is the thickest layer of the atmosphere

• Temperature increases with altitude

• It contains 90% of the atmosphere’s mass

• Weather does not occur in this layer

Multiple Choice

How does temperature change with altitude in the stratosphere compared to the troposphere?

• It increases in both layers

• It decreases in both layers

• It increases in the stratosphere and decreases in the troposphere

• It decreases in the stratosphere and increases in the troposphere

Fill in the Blanks

Stratospheric ozone protects Earth from harmful

radiation.

Multiple Choice

Which gas is primarily responsible for ozone depletion?

• Carbon dioxide

• Sulfur dioxide

• CFCs

• Water vapor

Multiple Select

Which of the following are considered greenhouse gases?

• Carbon dioxide

• Sulfur dioxide

• Ozone

• CFCs

Match

Match the following layers with their description.

• Lowest layer in the atmosphere

• Keeps most of the UV radiation from reaching the Earth's surface

• Area where meteors incinerate

• Location of the ISS

• Highest of all temperatures, but doesn't feel because particles are to far away to transfer energy

Troposphere

Stratosphere

Mesosphere

Thermosphere

Exosphere

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• Exosphere

Multiple Choice

The Earth's atmosphere is made up of several layers. Which of the following is NOT a layer of the Earth's atmosphere?

• Troposphere

• Stratosphere

• Hydrosphere

• Mesosphere

Hotspot

Which layer is the mesosphere?