Helium Burns in the Core of a Horizontal Branch Star

question 86

Multiple Choice

Helium burns in the core of a horizontal branch star via _________ and produces _________.

• A) the triple-alpha reaction; carbon
• B) the proton-proton chain; lithium
• C) the triple-alpha reaction; oxygen
• D) the proton-proton chain; iron
• E) the proton-proton chain; calcium

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Definitions:

Revenue Recognition

The guideline in accounting that determines the precise situations where revenue should be recognized or reported.

Future Event

An occurrence or situation that has not yet happened but is anticipated or expected to occur in the course of business or life.

Accounts Receivable

Amounts owed to a business by its customers for goods or services delivered on credit.

Revenue Recognition

A principle guiding how and when revenue is recognized in the accounting records, generally when earned and realizable.