Which statement about stars is correct?
F
Star formation begins in a nebula.
G White dwarfs become main-sequence stars when they gain mass.
H
Supergiants are stars that can absorb black holes.
J Main-sequence stars are formed by comets.

Which statement describes the formation of our sun? a disk formed of long trails of stars coiled into a spiral. it formed an elliptical flattened disk. heat and gases contracted within a nebula. gravity pushed stars away from a center core.