A White Dwarf Is at What Stage of Its Evolution

question 198

Multiple Choice

A white dwarf is at what stage of its evolution?

• A) protostar phase, just after formation, beginning to generate energy by nuclear fusion
• B) main-sequence phase, "middle-aged," generating energy by fusion of hydrogen to helium
• C) post-supernova stage, after the explosion of a star
• D) very late phase of evolution, no longer generating energy

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Definitions:

Average Operating Assets

The average value of the assets used in the operations of a business over a specific period.

Net Operating Income

The total profit of a company after operating expenses are subtracted from gross profit.

ROI

Return on Investment, a performance measure used to evaluate the efficiency or profitability of an investment relative to its cost.

Contribution Margin Ratio

The percentage of sales revenue remaining after variable costs are subtracted, indicating how much contributes to covering fixed costs and generating profit.