When Does a Star Become a Main-Sequence Star

question 39

Multiple Choice

When does a star become a main-sequence star?

• A)when the protostar assembles from a molecular cloud
• B)the instant when hydrogen fusion first begins in the star's core
• C)when the rate of hydrogen fusion within the star's core is high enough to maintain gravitational equilibrium
• D)when a star becomes luminous enough to emit thermal radiation
• E)when hydrogen fusion is occurring throughout a star's interior

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Liabilities

Financial obligations or debts that a company owes to outside parties, which must be paid back in the future.

Liabilities

Financial obligations or debts that an entity owes to others, which need to be settled over time via the transfer of economic benefits.

Creditors

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Individuals or companies that owe money to another party, often referred to in the context of accounts receivable.