6. Atmosphere and Climate Change
Atmospheric Composition — Quiz
Test your understanding of atmospheric composition with 5 practice questions.
Practice Questions
Question 1
Which gas makes up about $78\%$ of Earth’s atmosphere by volume?
Question 2
Which gas is most directly responsible for supporting human respiration in the atmosphere?
Question 3
What is the main role of the ozone layer in the upper atmosphere?
Question 4
Which layer of the atmosphere is closest to Earth’s surface and contains most weather?
Question 5
Which statement best describes a greenhouse gas?