A white dwarf requires __________ in order to undergo a nova explosion.
A. a dusty debris ring.
B. dark matter.
C. hydrogen from a companion star.
D. a nearby type II supernova explosion.
Answer:C
A white dwarf requires __________ in order to undergo a nova explosion.
A. a dusty debris ring. B. dark matter. C. hydrogen from a companion star. D. a nearby type II supernova explosion.