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