Question

section two: vocabulary
put the letter of the definition of each star in the box in front of the word.
black dwarf
a. exerts such a strong gravitational pull that no light escapes
white dwarf
b. a large cloud of gas or dust in space
nebula
c. what a medium - mass star becomes at the end of its life
protostar
d. the earliest stage of a stars life
supernova
e. star left at the core of a planetary nebula
neutron star
f. the remains of a high mass star
black hole
g. a red supergiant star explodes

Explanation:

1. A black dwarf is a hypothetical cold, dark star remnant, not directly matched here but not A.
2. A white - dwarf is what a medium - mass star becomes at the end of its life, so White dwarf - C.
3. A nebula is a large cloud of gas or dust in space, so Nebula - B.
4. A protostar is the earliest stage of a star's life, so Protostar - D.
5. A supernova is when a red supergiant star explodes, so Supernova - G.
6. A neutron star is the remains of a high - mass star, so Neutron star - F.
7. A black hole exerts such a strong gravitational pull that no light escapes, so Black hole - A.

Answer:

Black dwarf - None of the above (hypothetical, not directly matched)
White dwarf - C. what a medium - mass star becomes at the end of its life
Nebula - B. a large cloud of gas or dust in space
Protostar - D. the earliest stage of a star's life
Supernova - G. a red supergiant star explodes
Neutron star - F. the remains of a high mass star
Black hole - A. exerts such a strong gravitational pull that no light escapes