Question

1. place the following stages of a low mass star, like our sun, in order from youngest to oldest stage: a) red giant, b) white dwarf, c) planetary nebula, d) main sequence. a b, c, d d, a, c, b d, b, c, a a, c, d, b

Explanation:

The life cycle of a low - mass star (like the Sun) starts with the Main Sequence (D) stage, where the star fuses hydrogen in its core. Then it evolves into the Red Giant (A) stage as hydrogen in the core is exhausted and the outer layers expand. Next comes the Planetary Nebula (C) stage, where the outer layers are ejected. Finally, the remaining core becomes a White Dwarf (B). So the correct order from younger to older is D, A, C, B.

Answer:

D. A, C, B