Exploring Earth's Atmosphere

Which of the following best describes air?

• A single gaseous element

• A mixture of gaseous elements and compounds

• A liquid compound

• A solid element

Tags

NGSS.MS-PS1-1

What happens to the density of the atmosphere as altitude increases?

• It increases

• It decreases

• It remains constant

• It fluctuates randomly

Which of the following is a characteristic of the Earth's atmosphere?

• It is composed entirely of oxygen

• It has a constant temperature throughout

• It has layers with different temperatures and pressures

• It is a solid layer surrounding the Earth

How does the composition of air change with altitude?

• The proportion of oxygen increases

• The proportion of nitrogen decreases

• The proportion of gases remains the same

• The proportion of carbon dioxide increases

Which of the following gases is most abundant in the Earth's atmosphere?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Argon

What is the primary reason for the change in atmospheric pressure with altitude?

• Increase in temperature

• Decrease in the number of air molecules

• Increase in humidity

• Decrease in gravity

Which layer of the atmosphere contains the ozone layer?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

What is the role of carbon dioxide in the atmosphere?

• It is the most abundant gas

• It is responsible for the greenhouse effect

• It forms the ozone layer

• It is a solid at room temperature

Tags

NGSS.MS-ESS3-5

How does temperature generally change as you move higher in the troposphere?

• It increases

• It decreases

• It remains constant

• It fluctuates randomly

Tags

NGSS.MS-ESS2-6

Which of the following best describes the troposphere?

• It is the hottest layer of the atmosphere

• It is where most weather phenomena occur

• It contains the ozone layer

• It is the outermost layer of the atmosphere