The Earth’s Atmosphere Layers Quiz
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Questions and Answers

What is the primary characteristic of the Troposphere layer of the Earth's atmosphere?

  • It is the layer where meteors burn up upon entry
  • It is the layer where temperature increases with height
  • It is the layer where radio waves are reflected back to Earth
  • It is the layer where weather occurs and humans live (correct)

    • What is the primary function of the Stratosphere layer of the Earth's atmosphere?

  • It is the layer where individual gas molecules are present
  • It is the layer that shields the Earth from harmful human radiation (correct)
  • It is the layer where satellites and human-made objects orbit the Earth
  • It is the layer where temperature decreases with height

    • What is the primary characteristic of the Mesosphere layer of the Earth's atmosphere?

  • It is the layer where radio waves are reflected back to Earth
  • It is the layer where weather occurs and humans live
  • It is the layer where temperature increases with height
  • It is the layer where meteors burn up upon entry (correct)

    • What is the primary function of the Thermosphere layer of the Earth's atmosphere?

    <p>It is the layer where individual gas molecules are present</p> Signup and view all the answers

    What is the primary characteristic of the Exosphere layer of the Earth's atmosphere?

    <p>It is the layer where satellites and other human-made objects in Earth's orbit are found</p> Signup and view all the answers

    Study Notes

    Troposphere

    • Closest layer to Earth's surface, extending up to about 8-15 km (5-9 miles) in altitude.
    • Contains most of the atmosphere's mass, weather phenomena and clouds occur within this layer.
    • Temperature decreases with altitude, averaging around -6.5°C per kilometer.

    Stratosphere

    • Located above the troposphere, reaching heights of about 50 km (31 miles).
    • Home to the ozone layer, which absorbs and scatters ultraviolet solar radiation.
    • Temperature increases with altitude due to ozone absorption of UV radiation.

    Mesosphere

    • Extends from the stratosphere to about 85 km (53 miles) above the Earth.
    • Characterized by decreasing temperatures with altitude, reaching the coldest temperatures in the atmosphere, around -90°C.
    • Meteors burn up in this layer due to friction with the sparse air particles.

    Thermosphere

    • Ranges from 85 km to approximately 600 km (375 miles) above the Earth.
    • Temperature rises significantly due to absorption of high-energy solar radiation, sometimes exceeding 2,500°C.
    • This layer is where the auroras occur and is key for international space station operations due to its low density.

    Exosphere

    • Outermost layer of the Earth's atmosphere, extending from 600 km (375 miles) to about 10,000 km (6,200 miles).
    • Composed mainly of hydrogen and helium, with extremely low density.
    • Serves as a transition zone between the Earth's atmosphere and outer space, where satellites orbit.

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    Description

    Explore the five layers of the Earth's atmosphere, from the Troposphere to the Stratosphere. Learn about the characteristics, functions, and heights of each layer in this quiz.

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