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Earth System and Major Themes Quiz
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Earth System and Major Themes Quiz

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@WellRoundedSonnet

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Questions and Answers

What is the primary composition of the Earth's crust?

  • Potassium and sodium
  • Silicon and oxygen (correct)
  • Iron and magnesium
  • Aluminum and calcium

    • What is the main feature of the Earth's core?

  • It is the outermost layer of the Earth
  • It generates the Earth's magnetic field (correct)
  • It is composed of silicate rocks
  • It is a gaseous layer surrounding the Earth

    • Which scientist popularized the term 'biosphere'?

  • Friedrich Wilhelm Heinrich Alexander von Humboldt
  • James Lovelock
  • Lyn Margulis
  • Vladimir Vernadsky (correct)

    • What is the primary composition of the Earth's atmosphere?

    <p>78% nitrogen, 21% oxygen</p> Signup and view all the answers

    Which scientist(s) developed the Gaia Hypothesis?

    <p>James Lovelock and Lyn Margulis</p> Signup and view all the answers

    What was the significance of the report 'Earth System Science: A Program for Global Change' published in 1988?

    <p>It demonstrated how the Earth's systems are interconnected</p> Signup and view all the answers

    What powers the Earth system?

    <p>The Sun</p> Signup and view all the answers

    What percentage of Earth's water is fresh?

    <p>3%</p> Signup and view all the answers

    Which subsystem includes all life forms on Earth?

    <p>Biosphere</p> Signup and view all the answers

    In a closed system, which of the following exchanges occur?

    <p>Exchange of heat or energy only</p> Signup and view all the answers

    What are the major themes in the Earth system?

    <p>Scale, Energy, and Cycles</p> Signup and view all the answers

    Which component of the Earth system covers the solid Earth from the surface to the center?

    <p>Lithosphere</p> Signup and view all the answers

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