Respuesta :
Answer:
1. Option C
2. Option A
Explanation:
1. option C is correct
The protostar glows because of the heat released by the nuclear fusion process in the form of gamma rays. Hence, option C is correct
2. option A is correct
The HII regions consists of the ionized hydrogen atom that causes diffusion of nebula or emission of nebula and coming from a central star with temperature greater than 20,000 K.
1)The heat released by the nuclear fusion process in the form of gamma rays causes the protostar to shine. As a result, option C is appropriate.
2)The HII regions are made up of ionized hydrogen atoms that generate nebula diffusion or emission and are produced by a central star with a temperature more than 20,000 K. As a result, option A is appropriate.
About A protostar and HII region:
- A protostar is a nascent star that is still gaining mass from its molecular cloud of origin.
- The protostellar phase is the first in the stellar development process. It lasts roughly 500,000 years for a low-mass star.
- HII regions are emission nebulae formed when high-energy UV light from young, massive stars ionizes neighboring gas clouds.
- They are mostly made up of hydrogen, hence the name (astronomers refer to ionised hydrogen as HII, while neutral hydrogen is referred to as HI). They have temperatures of roughly 10,000 Kelvin.
Thus for both the questions Option C and A are correct.
For more information about the A protostar and HII region refer to the link:
https://brainly.com/question/13940674
