What Is the Significance of Finding Evidence That Zirconium/uranium Rocks

question 43

Multiple Choice

What is the significance of finding evidence that zirconium/uranium rocks formed in water 4.2 million years ago?

• A)Zirconium can be used for dating old rock samples.
• B)The Earth coalesced from gas earlier than originally thought.
• C)The Earth cooled earlier than originally thought.
• D)Radiation played a role in the origin of life.

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Definitions:

Internal Rate of Return

The discount rate at which the net present value of all the cash flows from an investment or project equals zero, used as a gauge for its profitability.

Working Capital

The amount of current assets minus current liabilities, indicating the liquidity of a business.

Net Present Value

The difference between the present value of cash inflows and the present value of cash outflows over a period, used in capital budgeting to assess the profitability of an investment.

Working Capital

An indicator of a company's short-term financial health and operational efficiency, calculated as current assets minus current liabilities.