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