Answer:

ANSWER

1. About giant gas cloud avatar originates from a large cloud of gas is an example of star in this stage of life.

2. About the creation of protostars are warmer than other materials in the molecular cloud. Several proto stars can be formed in one cloud, depending on the size of the molecular cloud.

3. Then about the T- Tauri star begins when materials stop falling into the protostar and release tremendous amounts of energy. The mean temperature of the Tauri star isn’t enough to support nuclear fusion at its core.

4. About the main sequence phase is the stage in development where the core temperature reaches the point for the fusion in this process, the protons of hydrogen are converted into atoms and Helium.

5. About Red giant a star converts hydrogen atoms into helium over its course of life at its core. Eventually, the hydrogen fuel runs out, and the internal reactions stops. As it expands, the star first becomes a sub giant star and then a red giant. Red giants have cooler surfaces than the main sequence star, and because of this, to hey appeared than yellow.

6. About the fusion of heavier elements. Helium molecules fuse at the core, as the star expands. The energy of this reaction prevents the core from collapsing. The iron fusion reaction absorbs energy, collapse. This implosion transforms massive stars into a supernova while smaller stars like the sun contract into white dwarfs.

7. About supernovae and planetary nebula most of the star is blasted away into space, but the core implodes into a neutron star or a singularity known as the black hole