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