Question

which was an accomplishment of galileo galilei?
developing a theory of gravity
finding elliptical galaxies
identifying continental drift
discovering four moons orbiting jupiter

Explanation:

• "Developing a theory of gravity" was done by Isaac Newton, not Galileo.
• "Finding elliptical galaxies" is not associated with Galileo's work.
• "Identifying continental drift" was proposed by Alfred Wegener, not Galileo.
• Galileo Galilei used a telescope to discover four moons (Io, Europa, Ganymede, and Callisto) orbiting Jupiter.

Answer:

discovering four moons orbiting Jupiter