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6 Cards in this Set

  • Front
  • Back
Which of the moons around Jupiter identified by Galileo has a rocky surface?
Callisto
Where is most of the world's fresh water located?
underground
A delta is a formation built up by what?
river sediments
What does an ichthyologist study?
fish species
What is the process responsible for the energy that stars release?
fusion
What can a spectroscope directly tell us about a star?
composition