Pluto
  • 1. Which year was Pluto discovered?
A) 1930
B) 1950
C) 2000
D) 1900
  • 2. Who discovered Pluto?
A) Galileo Galilei
B) Albert Einstein
C) Clyde Tombaugh
D) Isaac Newton
  • 3. What is the average distance of Pluto from the Sun?
A) 1 billion miles
B) 3.67 billion miles
C) 100 million miles
D) 20 million miles
  • 4. Which spacecraft conducted a flyby of Pluto in 2015?
A) Voyager 1
B) New Horizons
C) Hubble Space Telescope
D) Cassini
  • 5. What is the largest moon of Pluto?
A) Hydra
B) Nix
C) Charon
D) Styx
  • 6. How long does it take for Pluto to orbit the Sun?
A) 248 Earth years
B) 10 Earth years
C) 365 Earth days
D) 100 Earth years
  • 7. Which element is abundant in Pluto's atmosphere?
A) Helium
B) Nitrogen
C) Carbon dioxide
D) Oxygen
  • 8. What is the official classification of Pluto in the solar system?
A) Comet
B) Asteroid
C) Dwarf planet
D) Gas giant
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