More massive stars are _________ luminous and __________ than ...

[gbarreiro]

More massive stars are _________ luminous and __________ than less massive stars, thus they pulsate _____________.
 
  a. less, smaller, faster b. more, larger, slower
  c. more, larger, slower d. less, smaller, faster

Question 2

The creation of ________ require(s) that a young hot star (T  25,000 K) be relatively nearby.
 
  a. emission nebulae
  b. HI regions
  c. molecular clouds
  d. the cool gas of the interstellar medium
  e. 21-cm radiation

[aliotak]

Answer to Question 1

c

Answer to Question 2

a

[gbarreiro]

Thanks for the timely response, appreciate it

[zacnyjessica]

TYSM