Question

Our sun is in which stage of its life cycle?
A. red giant
B. main sequence
C. white dwarf
D. protostar

Answer 1

B.
Main Sequence

Answer 2

Use this diagram to answer the question.

Group A is grouped in an area from 20000 K to 2500 K and from 10^4 to 10^6 times the sun's luminosity. Group B is from 5000 k to 2500 K and from 1.2 to 10^2 times the sun's luminosity. Group C is in a small area located in a line that extends diagonally from top left to bottom right on diagram. Group D is from 35000 K to 7500 K and from 01^-4 to 10^-1 times the luminosity of the sun.
The Group A stars are most likely _________.
A. red giants
B. supergiants
C. white dwarfs