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