Podcast
Questions and Answers
What gas is the second most abundant in the atmosphere?
What gas is the second most abundant in the atmosphere?
- Oxygen (correct)
- Argon
- Carbon dioxide
- Helium
Which gas makes up the largest percentage of the Earth's atmosphere?
Which gas makes up the largest percentage of the Earth's atmosphere?
- Oxygen
- Nitrogen (correct)
- Argon
- Carbon dioxide
What role does carbon dioxide play in the biosphere?
What role does carbon dioxide play in the biosphere?
- Source of oxygen for respiration
- Primary constituent of the atmosphere
- Essential for photosynthesis in plants (correct)
- Incombustible gas
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?
What percentage of the atmosphere is composed of argon?
What percentage of the atmosphere is composed of argon?
Flashcards
Atmosphere
Atmosphere
The layer of gases surrounding the Earth, held in place by gravity.
Major Gases in the Atmosphere
Major Gases in the Atmosphere
The primary gases making up the atmosphere, comprising 99% of its volume.
Diluent
Diluent
Substance that dilutes the concentration of another substance.
Nitrogen in the Atmosphere
Nitrogen in the Atmosphere
Signup and view all the flashcards
Carbon Dioxide in the Atmosphere
Carbon Dioxide in the Atmosphere
Signup and view all the flashcards
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
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
