All Stars on the Main Sequence

question 61

Multiple Choice

All stars on the main sequence

• A) generate energy by hydrogen fusion in their centers.
• B) have approximately the same age, to within a few million years.
• C) are changing slowly in size, by gravitational contraction.
• D) are at a late stage of evolution, after the red giant stage.

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Definitions:

Wages

Compensation received by employees for services performed, usually based on hours worked or amount of work done.

Personal Exemption

A specific amount that taxpayers could deduct from their taxable income for themselves and their dependents, applicable in tax years before 2018.

Income Tax Withholding

The practice of deducting income tax from an employee's gross pay on behalf of the government, reducing the amount the employee takes home.

Multiple Support Agreement

An agreement where multiple parties contribute to the support of an individual, allowing one to claim a tax exemption under certain conditions.