Absorption Lines Due to Interstellar Gas

question 23

Multiple Choice

Absorption lines due to interstellar gas

• A)are wider than the lines from stars because the gas is hotter than most stars.
• B)are narrower than the lines from stars because the gas has a lower pressure than stars.
• C)indicate that the interstellar medium contains dust.
• D)indicate that the interstellar medium is expanding away from the Sun.
• E)None of the other choices are correct.

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Definitions:

Perfection

In legal and financial contexts, the process of securing an interest in property to achieve priority over third parties in relation to the property.

Secured Interest

A property interest created by agreement or by law over assets to secure the performance of an obligation, usually the payment of a debt.

Collateral

Assets pledged by a borrower to secure a loan or credit, which can be seized by the lender if the borrower fails to repay according to the agreed terms.

Repossessing

Repossessing refers to the process of a lender taking back possession of property (typically collateral) when the borrower fails to make required payments.