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What are some examples of atmospheres?

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Earth's atmosphere is primarily composed of nitrogen and oxygen with water vapor comprising 0.25 percent of the atmosphere by mass. It has five layers: troposphere, stratosphere, mesosphere, thermosphere and exosphere.

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What are some examples of atmospheres?
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Earth's atmosphere is the only one in the solar system capable of supporting life. Venus's atmosphere is mostly carbon dioxide with thick clouds of sulfur, which render the surface too hot to support any known form of life. The atmosphere of Mars is also mostly carbon dioxide with trace amounts of argon and nitrogen, but it is much thinner than that of Venus. The thin atmosphere fails to trap greenhouse gases, which leaves Mars much cooler than Earth.

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  • Q:

    What are the two main gases found in Earth's atmosphere?

    A:

    The two main gases found in Earth's atmosphere are nitrogen and oxygen. Nitrogen makes up 78 percent of the atmosphere, and oxygen makes up 21 percent. The remaining 1 percent consists of other gases, such as argon and water vapor.

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  • Q:

    What is the percentage of gases in the stratosphere?

    A:

    The stratosphere is a layer of the atmosphere that consists of nearly 19 percent of the atmosphere's gases, which are nitrogen, oxygen, argon and trace elements like neon and helium. The atmosphere consists of five layers, and its gas composition is 78 percent nitrogen, 21 percent oxygen and 0.9 percent argon.

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  • Q:

    What is the atmosphere made of?

    A:

    Earth's atmosphere consists of a variety of gases, including nitrogen, oxygen, argon and carbon dioxide, along with tiny solid particles such as dust, pollen and plant particles. The atmosphere also contains a small amount of water vapor. It is divided into five distinct layers, and plays an important role in regulating temperature on Earth and creating an environment supportive of life.

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  • Q:

    How much oxygen is in the air?

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    Since the atmosphere has a mass of approximately 5.15 x 10^18 kilograms, the total mass of oxygen in the atmosphere is approximately 1.08 x 10^18 kilograms. Oxygen makes up approximately 20.9 percent of the Earth's atmosphere.

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