Recall Layers of the Atmosphere

What is the most abundant gas in Earth's atmosphere?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Argon

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DOK Level 1: Recall

Which layer of the atmosphere contains the ozone layer?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

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DOK Level 1: Recall

Describe how the temperature changes as you move upward through the troposphere.

• It increases

• It decreases

• It remains constant

• It fluctuates

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DOK Level 2: Skill/Concept

What is the primary component of the Earth's atmosphere?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Water Vapor

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DOK Level 1: Recall

Explain why atmospheric pressure decreases with altitude.

• There is less air above you

• The temperature increases

• The air becomes denser

• The gravitational pull is stronger

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DOK Level 2: Skill/Concept

Which gas is responsible for absorbing harmful ultraviolet radiation in the atmosphere?

• Carbon Dioxide

• Oxygen

• Ozone

• Nitrogen

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DOK Level 1: Recall

Identify the layer of the atmosphere where weather occurs.

• Stratosphere

• Mesosphere

• Troposphere

• Thermosphere

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DOK Level 1: Recall

How does the composition of gases change as you move from the troposphere to the stratosphere?

• The concentration of oxygen increases

• The concentration of nitrogen decreases

• The concentration of ozone increases

• The concentration of carbon dioxide increases

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DOK Level 2: Skill/Concept

What is the approximate percentage of oxygen in Earth's atmosphere?

• 21%

• 78%

• 1%

• 0.03%

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DOK Level 1: Recall

Explain the role of carbon dioxide in the Earth's atmosphere.

• It is the most abundant gas

• It absorbs and emits infrared radiation

• It forms clouds

• It is responsible for the blue sky

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DOK Level 2: Skill/Concept