Is the Earth Special?
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Questions and Answers

What is the main difference between the inner planets and the outer planets?

  • The inner planets are bigger than the outer planets.
  • The inner planets have more moons than the outer planets.
  • The outer planets have a solid surface while the inner planets have a gaseous surface.
  • The outer planets are colder and larger than the inner planets. (correct)
  • What is the function of the trachea in the respiratory system?

  • Sound production
  • Gas exchange
  • Protection of the thorax
  • Conducting air into and out of the lungs (correct)
  • Why does a lunar eclipse occur?

  • When the moon changes its shape
  • When there is a shadow cast by a planet
  • When Earth comes between the moon and sun (correct)
  • When the sun comes between Earth and the moon
  • What is the function of alveoli in the respiratory system?

    <p>Gas exchange</p> Signup and view all the answers

    How many moons does Saturn have according to the text?

    <p>60</p> Signup and view all the answers

    What causes day and night on Earth?

    <p>The rotation of Earth on its axis</p> Signup and view all the answers

    Why is it hotter in summer than in winter on Earth?

    <p>The Earth's axis is tilted, causing the Sun's rays to be more concentrated in summer</p> Signup and view all the answers

    Why do seasons change on Earth?

    <p>The tilt of Earth's axis as it orbits the Sun</p> Signup and view all the answers

    What type of planets are Mercury, Venus, Earth, and Mars considered to be?

    <p>Terrestrial planets</p> Signup and view all the answers

    Why does no one see all of the solar system at once?

    <p>Because the solar system is too big to observe all at once</p> Signup and view all the answers

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