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