Because the Early Earth Was a Large Sphere of Magma

question 38

Multiple Choice

Because the early Earth was a large sphere of magma, the earliest rocks that formed here were recycled into the mantle long ago.What is the age of the oldest radiometrically dated rocks discovered on the planet? (Or, what is the age of the oldest remaining rocks on Earth?)

• A)6,000 years old
• B)4.6 million years old
• C)4 billion years old
• D)4.6 billion years old

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Definitions:

Leverage Ratios

Financial ratios that measure the amount of capital coming from debt and assess the ability of a company to meet financial obligations.

Liquidity Ratios

Financial metrics used to assess a company's ability to meet its short-term obligations, indicating how quickly assets can be converted into cash.

Debt Ratio

A financial ratio that measures the extent of a company's leverage, calculated as the company's total liabilities divided by its total assets.

Total Debts

The sum of all financial obligations or liabilities owed by an individual, organization, or country.