11. What is the name of the theory that explains the origin and evolution of the universe?
a) Theory of evolution
b) Big Bang theory
c) Theory of relativity
d) Quantum mechanics
12. What is the name of the largest star known to exist?
a) VY Canis Majoris
b) Betelgeuse
c) Rigel
d) Antares
13. What is the name of the process by which a star with a mass less than 3 solar masses dies and sheds its outer layers, leaving behind a hot core?
a) White dwarf formation
b) Neutron star formation
c) Black hole formation
d) Planetary nebula
14. What is the name of the group of stars that appears to form a pattern or shape in the sky?
a) Constellation
b) Cluster
c) Nebula
d) Galaxy
15. What is the name of the star that is at the center of our solar system?
a) Sirius
b) Polaris
c) Betelgeuse
d) Sun
