Which of the Following Is the Best Answer to the Question,"Why

question 55

Multiple Choice

Which of the following is the best answer to the question,"Why does the Sun shine?"

• A)As the Sun was forming,nuclear fusion reactions in the shrinking clouds of gas slowly became stronger and stronger,until the Sun reached its current luminosity.
• B)As the Sun was forming,gravitational contraction increased the Sun's temperature until the core become hot enough for nuclear fusion,which ever since has generated the heat that makes the Sun shine.
• C)The Sun initially began making energy through chemical reactions.These heated the interior enough to allow gravitational contraction and nuclear fusion to occur.
• D)The Sun initially began generating energy through nuclear fusion as it formed,but today it generates energy primarily through the sunspot cycle.

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Definitions:

Fair Value

An estimated market value of an asset or liability based on current market prices or valuations of similar instruments.

Mortgage

A loan secured by real property, typically paid back with interest over a long period, used by individuals and businesses to purchase real estate.

Allowance Account

An account used in accounting to record reductions in the carrying amount of accounts receivable, due to potential or estimated uncollectible debts.

Net Realizable Value

The estimated selling price in the ordinary course of business minus the estimated costs of completion and the estimated costs necessary to make the sale.