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Olenka [21]
3 years ago
11

Can someone help me with this please? ill give brainliest

Chemistry
1 answer:
Irina18 [472]3 years ago
5 0
1. A main sequence star is any star that is fusing hydrogen in its core and has a stable balance of outward pressure from core nuclear fusion and gravitational forces pushing inward. An example is our sun

2. A giant star is any star having a relatively large radius for its mass and temperature

3. Supergiant stars form out of massive main-sequence stars that have run out of hydrogen in their cores.

4. When the pressure drops low enough in a massive star, gravity suddenly takes over and the star collapses in just seconds.

5. Super novas are so powerful they could create new atomic nuclei


I hope this helps:)
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