Which of the Following Radioactive Isotopes Could Be Used to Date

question 54

Multiple Choice

Which of the following radioactive isotopes could be used to date very old (3 billion year old) rocks?

• A)uranium-238
• B)potassium-40
• C)uranium-235
• D)all of the above

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Definitions:

Nondiscriminating

A principle or policy of treating all people equally, without unfair bias or discrimination.

Maximum Profits

The highest attainable profit a firm can achieve when it sets its production output at a level where marginal cost equals marginal revenue.

Perfectly Price-Discriminated

A market scenario where a seller charges each buyer their maximum willingness to pay, capturing all available consumer surplus as profit.

Total Revenue

The total receipts from sales of a given quantity of goods or services.