Which Condition Does NOT Characterize a Pre-Main-Sequence Star in Its

question 6

Multiple Choice

Which condition does NOT characterize a pre-main-sequence star in its final stages?

• A) The star is fusing hydrogen into helium in its core.
• B) The star is no longer contracting.
• C) The gas and dust around the pre-main-sequence star have largely dissipated.
• D) Helium burning has begun as the principal energy generating mechanism in the star's core.

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Definitions:

Certificates of Deposit

Certificates of Deposit (CDs) are financial products offered by banks that provide a fixed interest rate in exchange for keeping a deposit untouched for a predefined period.

Maturity Date

The specific date on which the principal amount of a bond, loan, or other financial instrument is to be paid back in full to the investor.

Tax Bracket

A range of income taxed at a specific rate by the government, part of a progressive tax system.

Corporate Bond

A debt security issued by a corporation and sold to investors, paying fixed interest over its lifetime and repaying the principal at the bond’s maturity date.