Which of the Following Is an Environmental Cause for Decreased

question 7

Multiple Choice

Which of the following is an environmental cause for decreased auditory acuity during middle adulthood?

• A)The eardrum and other structures in the inner ear become less flexible.
• B)In the brain, the auditory cortex becomes less efficient in processing information from the inner ear.
• C)The cilia in the inner ear begin to thin, making it more difficult to hear.
• D)Having worked in a factory or at a job with exposure to chronically loud noises can contribute to hearing loss.

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Definitions:

Fixed Expenses

Costs that do not change with the level of production or sales over a certain period, such as rent or salaries.

Operating Leverage Factor

A measure that quantifies the proportion of fixed versus variable costs in a company's operating structure, indicating sensitivity to changes in sales volume.

Contribution Margin Ratio

The contribution margin ratio is the percentage of revenue that exceeds total variable costs, indicating how much of the sales revenue is available to cover fixed costs and generate profit.

Sales Dollars

The total revenue generated from the sale of goods or services, expressed in monetary units.