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