Respuesta :
Answer:
In addition to rocky material, the major constituent of Galilean satellites of Jupiter—Europa, Ganymede, and Callisto seems to be ices of water (H2O).
Explanation:
The Galilean satellites or Galilean moons are the satellites of Jupiter discovered by Galileo Galilei. They Include Io, Europa, Callisto, and Ganymede. Â
Ganymede (the largest moon in the Solar System) has a liquid iron core, an internal ocean that contains a very huge quantity of water and is made up of equal measures of both silicate rock and water ice. A magnetic field is present in this moon. The atmosphere of Ganymede contains a very small amount of molecular oxygen and ozone.
Callisto has a small silicate core and a subsurface ocean of liquid water. It is made up of approximately equal measures of both rock and ice, and also contains a small amount of silicates, carbon dioxide, and organic compounds. The atmosphere of Callisto contains a very small amount of carbon dioxide and molecular oxygen and has an intense ionosphere.
Europa (smallest of the four Galilean moons) has a metallic iron-nickel core and a water-ice crust. It is made up of silicate rock and has an outer layer of water, a part of which forms the frozen water-ice crust and another part forms the liquid ocean underneath the ice. The atmosphere of Europa mainly contains oxygen.
