Answer to Question #131661 in Astronomy | Astrophysics for Sphesihle Zuma

Question

Activity 1.6
Choose the correct answer.

1.what is the first stage of a stars life.
A. Nebula collapsing under itself.
B. Supernova of old star.
C. Planets collapsing
D. Fusion of atoms
2.a protostar is what is formed when a nebula's gas and dust come closer together.
A. True
B. False
3.after the protostar gets hot enough nuclear fusion reactions fuse together helium and hydrogen.
A. True
B. False
4.a main sequence star is?
A. A star that shines steadily due to nuclear fusion.
B. Several stars close together.
C.a star with planets orbiting.
D. A nebula that skips a protostar and is instantly turns into a star.
5.the bigger the star the longer it will live.
A. True
B. False
6.what happens when a star the size of our sun runs out of hydrogen?
A. It uses helium as fuel
B. It uses carbon as fuel
C. It goes supernova instantly
D. It turns green

Answer 1

1. A
2. A
3. B
4. A
5. B
6. A