Io's Composition Is Believed to Be Similar to That of the Terrestrial

question 157

Multiple Choice

Io's composition is believed to be similar to that of the terrestrial planets rather than to that of the giant planets, yet its density is intermediate between these two groups. Explain.

• A) Like the Earth-Moon system, Io is believed to have formed from part of the mantle of Jupiter and thus has a density different from Jupiter as a whole.
• B) The intense cold at Io's distance from the Sun compresses its materials and increases its density.
• C) The internal heat caused by its gravitational interaction with Jupiter causes Io to expand and decreases its density.
• D) Io's smaller mass causes its materials to be compressed less by its own gravity compared, for example, to Earth.

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Definitions:

Recoverable Amount

The recoverable amount is the higher of an asset's fair value less costs to sell and its value in use.

Carrying Amount

The book value of assets and liabilities recognized in a company's financial statements, calculated as the original cost minus any depreciation, amortization, or impairment costs.

Equity Method

An accounting technique used to record investments in other companies, recognizing income and changes in investment value.

Dividends

Distributions of earnings provided by a company to its stockholders, typically coming from the company's profits.