The Nova Phenomenon,an Occasional and Sometimes Repeated Intense Brightening of a Star

question 164

Multiple Choice

The nova phenomenon,an occasional and sometimes repeated intense brightening of a star by a factor of about 10⁶,is caused by:

• A) a beam of radiation from a nearby pulsar illuminating the surface of a red giant star and inducing rapid and intense heating.
• B) the capture and rapid compression of matter by a black hole.
• C) the explosion of a single massive star at the end of its thermonuclear fusion phases.
• D) explosive hydrogen fusion on the surface of a white dwarf star after mass transfer from a companion star in a binary system.

Understand the concept of subject-verb agreement.

Identify singular and plural subjects in sentences.

Apply subject-verb agreement rules in varied sentence structures.

Recognize the influence of prepositional phrases on subject-verb agreement.

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Definitions:

Contribution Format

A type of income statement where costs are divided into variable and fixed categories, emphasizing the contribution margin.

Traditional Format

In accounting, a conventional way of presenting financial statements that may include the income statement in a single-step or multi-step format, depending on the level of detail.

Cost Of Goods Sold

This is the direct costs attributable to the production of the goods sold in a company, including the cost of the materials and labor directly used to create the product.

Direct Manufacturing Cost

The total expense directly associated with the production of goods, including labor and materials.