Stars spend about 90% of their lifetimes fusing hydrogen into helium in high-temperature-and-pressure reactions in their cores. This kind of stars are mentioned for being on the principle sequence and so are named dwarf stars. free of charge!|This process releases Power that traverses the star's interior and radiates into outer https://angelo161y4.mybjjblog.com/the-2-minute-rule-for-star-40398606