Atmosphere

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What is the atmosphere?

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The atmosphere is a layer of gases surrounding the Earth, held in place by gravity. It is essential for life, providing oxygen, protecting from harmful solar radiation, and regulating temperature.

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What is deforestation?

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Deforestation is the large-scale removal of trees from forests, which can lead to environmental issues such as loss of biodiversity and increased carbon dioxide levels.

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NGSS.HS-ESS3-1

NGSS.HS-LS2-6

NGSS.HS-LS2-7

NGSS.HS-LS4-5

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What is the troposphere?

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The troposphere is the lowest layer of Earth's atmosphere, where most weather occurs. It extends from the Earth's surface up to about 8-15 kilometers.

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NGSS.MS-ESS2-5

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What gases are found in the atmosphere?

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The atmosphere contains various gases, including nitrogen (78%), oxygen (21%), argon (0.93%), carbon dioxide, water vapor, and trace gases.

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What is the role of water vapor in the atmosphere?

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Water vapor is a key component of the atmosphere that contributes to weather patterns, humidity, and the greenhouse effect.

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NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

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What is the greenhouse effect?

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The greenhouse effect is the process by which certain gases in the atmosphere trap heat, keeping the Earth warm enough to support life.

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NGSS.HS-ESS2-4

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

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What is argon?

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Argon is a colorless, odorless gas that is the third most abundant gas in the atmosphere, making up about 0.93% of the air.

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What percentage of the atmosphere is made up of oxygen?

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Oxygen makes up about 21% of the Earth's atmosphere.

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What is the significance of nitrogen in the atmosphere?

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Nitrogen, which makes up about 78% of the atmosphere, is essential for life as it is a key component of amino acids and proteins.

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What is the stratosphere?

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The stratosphere is the second layer of the atmosphere, located above the troposphere, and contains the ozone layer, which protects the Earth from harmful UV radiation.