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What is the approximate percentage of carbon dioxide in air?
- a)0.04%
- b)21%
- c)78%
- d)1%
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
What is the approximate percentage of carbon dioxide in air?a)0.04%b)2...
Understanding Carbon Dioxide in the Atmosphere
Carbon dioxide (CO2) is a critical component of Earth's atmosphere, playing a significant role in the greenhouse effect and supporting life through photosynthesis.
Approximate Percentage of Carbon Dioxide
- The concentration of carbon dioxide in the atmosphere is approximately 0.04%.
- This translates to about 400 parts per million (ppm).
Comparison with Other Gases
- Oxygen (21%): The second most abundant gas in the atmosphere, essential for respiration in most living organisms.
- Nitrogen (78%): The most abundant gas, making up a large majority of the atmosphere, but it is inert and does not support life directly.
- Other Gases (Less than 1%): This includes argon, neon, helium, and trace gases like ozone and methane.
The Role of Carbon Dioxide
- Photosynthesis: Plants absorb CO2 to produce oxygen and glucose, fundamental for life on Earth.
- Greenhouse Effect: CO2 traps heat in the atmosphere, helping to regulate Earth’s temperature.
Environmental Impact
- Climate Change: Increased levels of CO2 from human activities, like burning fossil fuels, contribute to global warming and climate change.
Conclusion
Understanding the composition of air, particularly the small but vital percentage of carbon dioxide, is crucial for grasping environmental science and the impacts of human activities on our planet.
Carbon dioxide (CO2) is a critical component of Earth's atmosphere, playing a significant role in the greenhouse effect and supporting life through photosynthesis.
Approximate Percentage of Carbon Dioxide
- The concentration of carbon dioxide in the atmosphere is approximately 0.04%.
- This translates to about 400 parts per million (ppm).
Comparison with Other Gases
- Oxygen (21%): The second most abundant gas in the atmosphere, essential for respiration in most living organisms.
- Nitrogen (78%): The most abundant gas, making up a large majority of the atmosphere, but it is inert and does not support life directly.
- Other Gases (Less than 1%): This includes argon, neon, helium, and trace gases like ozone and methane.
The Role of Carbon Dioxide
- Photosynthesis: Plants absorb CO2 to produce oxygen and glucose, fundamental for life on Earth.
- Greenhouse Effect: CO2 traps heat in the atmosphere, helping to regulate Earth’s temperature.
Environmental Impact
- Climate Change: Increased levels of CO2 from human activities, like burning fossil fuels, contribute to global warming and climate change.
Conclusion
Understanding the composition of air, particularly the small but vital percentage of carbon dioxide, is crucial for grasping environmental science and the impacts of human activities on our planet.
Community Answer
What is the approximate percentage of carbon dioxide in air?a)0.04%b)2...
Carbon dioxide makes up approximately 0.04% of the air.
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