Earth,which Is Mostly Rock and Iron,has a Density of 5515

question 290

Multiple Choice

Earth,which is mostly rock and iron,has a density of 5515 kg/m³.Ganymede,Jupiter's largest satellite,contains much water and water ice and has a density of 1940 kg/m³.Io has a density of 3570 kg/m³.What conclusions have astronomers drawn from this?

• A) Io must be composed of some new material other than rocks, iron, water, or ice.
• B) Io is composed of compressed water and water ice.
• C) Io is mostly rock and iron, but because of its smaller mass, it cannot compress the material as much as Earth can.
• D) Since Io is smaller than Earth, it is expected to have a smaller density regardless of composition.

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Definitions:

Absorption Costing

The product cost determination method under this accounting strategy includes the expenses for direct materials, direct labor, and all manufacturing overhead, whether it is variable or fixed.

Gross Margin

A company's total sales revenue minus its cost of goods sold, divided by the total sales revenue, expressed as a percentage.

Variable Costing

An accounting method that includes only variable production costs (materials, labor, and overhead) in product costs and treats fixed manufacturing overhead as an expense of the period.

Period Cost

Expenses that are not directly tied to production activity and are expensed in the period in which they are incurred.