Which of the Following Is FALSE About Magma

question 66

Multiple Choice

Which of the following is FALSE about magma?

• A) Most magmas come from melting of the asthenosphere.
• B) Some magma comes from rocks melted through decompression.
• C) Adding volatiles, such as water, to rock decreases its melting point and makes it easier to melt.
• D) Some rocks are melted from magma that is rising from deep within the Earth.
• E) Tectonic plates move around on an underground ocean of magma.

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CM Ratio

The contribution margin ratio, calculated as the contribution margin divided by net sales revenue, indicating the proportion of sales revenue available to cover fixed costs and generate profit.

Traceable Fixed Expenses

Fixed costs that can be directly linked to a specific department, project, or segment of a business.

Common Fixed Expenses

Overhead costs that do not vary with the level of production or sales, shared across different segments of a business.

Business Segments

Distinct parts of a company that can be separately identified by the products or services they offer or by geographic regions.