A) 1900 B) 1930 C) 2000 D) 1950
A) Clyde Tombaugh B) Galileo Galilei C) Isaac Newton D) Albert Einstein
A) 1 billion miles B) 3.67 billion miles C) 100 million miles D) 20 million miles
A) Asteroid B) Comet C) Gas giant D) Dwarf planet
A) Cassini B) Hubble Space Telescope C) Voyager 1 D) New Horizons
A) Styx B) Charon C) Hydra D) Nix
A) 365 Earth days B) 248 Earth years C) 100 Earth years D) 10 Earth years
A) Carbon dioxide B) Helium C) Oxygen D) Nitrogen |