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Which statement accurately describes the Earth's atmosphere?
- a)The atmosphere is stationary and does not move.
- b)The atmosphere extends infinitely into space.
- c)The atmosphere is a layer of gas surrounding the Earth.
- d)The atmosphere consists only of oxygen gas.
Correct answer is option 'C'. Can you explain this answer?
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Which statement accurately describes the Earth's atmosphere?a)The atmo...
The Earth's atmosphere is a layer of gas that surrounds the planet, extending to an approximate height of 600 kilometers. This gaseous envelope plays a vital role in supporting life on Earth by providing the necessary gases for respiration, regulating temperature, and protecting against harmful radiation from the Sun. The atmosphere consists of a mixture of gases, with nitrogen and oxygen being the most abundant, along with traces of other gases such as carbon dioxide, argon, and water vapor.
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Which statement accurately describes the Earth's atmosphere?a)The atmo...
The Earth's Atmosphere: An Overview
The Earth's atmosphere is a critical component of our planet, providing essential conditions for life. Here’s a detailed explanation of why option 'C' is the correct answer.
What is the Atmosphere?
- The atmosphere is a layer of gases that surrounds the Earth.
- It is held in place by the Earth's gravity, preventing the gases from escaping into space.
Composition of the Atmosphere
- The atmosphere consists of a mixture of gases, including nitrogen (about 78%), oxygen (about 21%), and trace amounts of other gases such as carbon dioxide, argon, and water vapor.
- This diverse composition is crucial for various processes, including respiration in living organisms and the greenhouse effect that helps regulate the Earth's temperature.
Characteristics of the Atmosphere
- The atmosphere is not stationary; it is dynamic, with air currents, weather patterns, and temperature variations.
- It does not extend infinitely into space; it gradually thins out and transitions into the vacuum of space at high altitudes.
Importance of the Atmosphere
- The atmosphere protects life on Earth by filtering harmful solar radiation and maintaining a stable climate.
- It plays a vital role in the water cycle and weather systems, influencing ecosystems and human activities.
In summary, option 'C' accurately describes the Earth's atmosphere as a layer of gas surrounding the Earth, essential for supporting life and various environmental processes.
The Earth's atmosphere is a critical component of our planet, providing essential conditions for life. Here’s a detailed explanation of why option 'C' is the correct answer.
What is the Atmosphere?
- The atmosphere is a layer of gases that surrounds the Earth.
- It is held in place by the Earth's gravity, preventing the gases from escaping into space.
Composition of the Atmosphere
- The atmosphere consists of a mixture of gases, including nitrogen (about 78%), oxygen (about 21%), and trace amounts of other gases such as carbon dioxide, argon, and water vapor.
- This diverse composition is crucial for various processes, including respiration in living organisms and the greenhouse effect that helps regulate the Earth's temperature.
Characteristics of the Atmosphere
- The atmosphere is not stationary; it is dynamic, with air currents, weather patterns, and temperature variations.
- It does not extend infinitely into space; it gradually thins out and transitions into the vacuum of space at high altitudes.
Importance of the Atmosphere
- The atmosphere protects life on Earth by filtering harmful solar radiation and maintaining a stable climate.
- It plays a vital role in the water cycle and weather systems, influencing ecosystems and human activities.
In summary, option 'C' accurately describes the Earth's atmosphere as a layer of gas surrounding the Earth, essential for supporting life and various environmental processes.
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Which statement accurately describes the Earth's atmosphere?a)The atmosphere is stationary and does not move.b)The atmosphere extends infinitely into space.c)The atmosphere is a layer of gas surrounding the Earth.d)The atmosphere consists only of oxygen gas.Correct answer is option 'C'. Can you explain this answer?
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