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What Makes Earth Unique Among Planets?
  • 1. What is the primary factor that allows Earth to support life?
A) High levels of carbon dioxide
B) Liquid water
C) Lack of atmosphere
D) Extreme temperatures
  • 2. Which gas makes up the majority of Earth's atmosphere?
A) Carbon Dioxide
B) Oxygen
C) Nitrogen
D) Hydrogen
  • 3. Which layer of Earth's atmosphere is closest to the surface?
A) Mesosphere
B) Troposphere
C) Thermosphere
D) Stratosphere
  • 4. What geological activity is crucial for recycling Earth's materials?
A) Lunar phases
B) Magnetic reversals
C) Solar flares
D) Plate tectonics
  • 5. Which celestial body is Earth's main satellite?
A) Phobos
B) Mars
C) The Moon
D) Venus
  • 6. What phenomenon is critical for the Earth’s weather patterns?
A) Ocean currents
B) Volcano eruptions
C) Meteor showers
D) Sea level rise
  • 7. What feature is essential for Earth to maintain its temperature?
A) Greenhouse gases
B) Dermal radiation
C) Increased solar energy
D) Lunar cycles
  • 8. What is the primary source of energy for life on Earth?
A) Wind energy
B) The Sun
C) Geothermal energy
D) Nuclear energy
  • 9. Earth is located in which part of the solar system?
A) The Kuiper belt
B) The asteroid belt
C) The habitable zone
D) The outer planets
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