Which of the jovian moons is the largest and also the largest moon in the solar system, even bigger than Mercury?
A) Titan
B) Triton
C) Ganymede
D) Callisto
E) Umbriel
Question 2
The Law of Universal Gravitation was developed by:
A) Kepler.
B) Galileo.
C) Newton.
D) Copernicus.
E) Einstein.