What is the composition of Earth's atmosphere?
Understand the Problem
The question is asking about the composition of Earth's atmosphere and presenting multiple-choice answers related to the percentages of various gases present in it.
Answer
21% Oxygen, 78% Nitrogen, 1% other gases.
The final answer is 21% Oxygen, 78% Nitrogen, 1% other gases.
Answer for screen readers
The final answer is 21% Oxygen, 78% Nitrogen, 1% other gases.
More Information
Earth's atmosphere is primarily composed of nitrogen and oxygen, which are essential for life. Other gases, such as argon and carbon dioxide, are present in small amounts.
Tips
A common mistake is to overestimate the amount of carbon dioxide or other gases, while nitrogen and oxygen make up the majority.
Sources
- Atmosphere of Earth - Wikipedia - en.wikipedia.org
- The Atmosphere | National Oceanic and Atmospheric Administration - noaa.gov
- Earth's atmosphere is made of mainly nitrogen and oxygen | Space - space.com
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