an explosion that destroys the outer portion of a star is known as a
A. protostar.
B. supernova.
C. nebula.
D. supergiant.
B. supernova.
C. nebula.
D. supergiant.
A. protostar.
B. supernova.
C. nebula.
D. supergiant.
B. supernova.
C. nebula.
D. supergiant.
Answer: