Planetary Nebulae Are So Named Because

question 177

Multiple Choice

Planetary nebulae are so named because:

• A) they were extended objects, often green-colored, that looked like planets when first seen by nineteenth-century observers through their telescopes.
• B) the ejected material is rich in carbon and oxygen, necessary elements for the manufacture of planets in the nebulae surrounding stars.
• C) they rotate slowly and condense into planetary objects around a central star.
• D) their spectra appear to be similar to the spectra of the giant gas planets in the solar system.

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Definitions:

Fixed Overhead Costs

Indirect expenses of running a business that are not affected by changes in the volume of goods or services produced, such as rent, salaries, and insurance.

Overhead Costs

Ongoing expenses related to the operation of a business, such as rent, utilities, and insurance, that are not directly tied to production.

Overhead Volume Variance

The difference between allocated overhead based on standard hours allowed and the actual overhead incurred, reflecting efficiency in utilizing resources.

Normal Capacity Hours

A calculation of the maximum amount of work that an organization can complete in a given period under normal conditions.