Journey to the Center
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Questions and Answers

Which of the following is true about Earth's magnetic field?

  • It is caused by the molten nickel-iron core of the Earth. (correct)
  • It is found only on Earth and not on any other planet.
  • It is a result of the harmful radiation from the Sun.
  • It is generated by the atmosphere of the Earth.

    • What makes Earth a unique planet?

  • It is the only planet in the solar system with a magnetic field.
  • It has liquid water, plate tectonics, and an atmosphere that shields it from the Sun's rays. (correct)
  • It is the only planet in the known universe confirmed to host life.
  • It has the largest amount of liquid water in the solar system.

    • What percentage of Earth's surface is covered by liquid water?

  • 30%
  • 50%
  • 90%
  • 70% (correct)

    • What is the main function of Earth's atmosphere?

    <p>To shield the Earth from harmful radiation from the Sun.</p> Signup and view all the answers

    Which of the following is not a reason why Earth is a habitable planet?

    <p>It has a thick atmosphere.</p> Signup and view all the answers

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