Which sequence correctly describes the steps in the life cycle of ...

[K@]

Which sequence correctly describes the steps in the life cycle of a star?
  a. protostar, stability, nuclear fusion, red giant, supernova
  b. supernova, red giant, nuclear fusion, stability, protostar
  c. red giant, protostar, stability, nuclear fusion, supernova
  d. protostar, nuclear fusion, stability, red giant, supernova
  e. nuclear fusion, protostar, stability, supernova, red giant

Question 2

The water for Earths ocean originated from ____.
  a. volcanic activity and other planets
  b. volcanic activity and comets
  c. other planets
  d. the sun
  e. solar nebula

[fromAlphatoOmega22]

Answer to Question 1

d

Answer to Question 2

b

[K@]

Thanks for the timely response, appreciate it

[jomama]

Excellent