Podcast
Questions and Answers
What gas is the second most abundant in the atmosphere?
What gas is the second most abundant in the atmosphere?
Which gas makes up the largest percentage of the Earth's atmosphere?
Which gas makes up the largest percentage of the Earth's atmosphere?
What role does carbon dioxide play in the biosphere?
What role does carbon dioxide play in the biosphere?
Which of the following components is NOT a major gas found in the atmosphere?
Which of the following components is NOT a major gas found in the atmosphere?
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What percentage of the atmosphere is composed of argon?
What percentage of the atmosphere is composed of argon?
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Study Notes
Atmosphere Composition
- The atmosphere is a gaseous envelope surrounding Earth, held in place by gravity
- The atmosphere is essential for life on Earth, filtering harmful radiation and providing necessary gases
- The atmosphere's height extends to about 29,000 km, but 97% is within 29 km of the surface
- The atmosphere is a mixture of gases, water vapor, and particulates
- 99% of the atmosphere's gases are nitrogen (78%) and oxygen (21%)
- Other gases include argon (0.93%), carbon dioxide (0.03%), neon (0.0018%), helium (0.0005%), ozone (0.00006%), hydrogen (0.00005%), krypton (trace), xenon (trace), and methane (trace)
- Oxygen is vital for living organisms, used in respiration
- Oxygen is essential in combustion reactions
- Nitrogen is a diluting agent and is chemically inactive
- Carbon dioxide is used by green plants in photosynthesis
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Description
Test your knowledge about the composition of Earth's atmosphere. This quiz covers the essential gases, their proportions, and the importance of these gases for life on Earth. Delve into the roles of nitrogen, oxygen, carbon dioxide, and other trace gases.
