14. the sun's layer is called the photosphere . ( 1point) A. true b. false

15. meteoroids can form when comets break apart , creating dust clouds . ( 1point ) A. true b. false

16. a star is born whenever a nebula expands . ( 1point ) A. true b. false

17. a star system has at least three stars . ( 1point ) A. true B . false

My Answers are :
T
F
F
F