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