Which of These Mechanisms Is MOST Likely to Have Taken

question 124

Multiple Choice

Which of these mechanisms is MOST likely to have taken place while Earth was molten to form the present structure of Earth?

• A) All materials were thoroughly mixed by convection in the molten state, and Earth remained mixed as it cooled.
• B) Hydrogen and helium became highly compressed by gravity and sank to the core below a layer of heavier rocky material.
• C) Lighter elements sank to the center, leaving the heavier material to form the rocky surface as cooling proceeded.
• D) Heavy elements sank to the center under gravity while lighter materials rose to the surface and solidified into rocks.

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Definitions:

Accuracy

The degree to which the result of a measurement, calculation, or specification conforms to the correct value or a standard.

Posting

The act of recording financial transactions in the ledger of an accounting system.

Transaction

An agreement or exchange between two parties that involves the buying, selling, or trading of goods, services, or financial instruments.

Proof

in a financial context, refers to the process of verifying the accuracy and consistency of accounting records and financial statements.