How Many Half-Lives Has a Fossilized Tree Undergone If It

question 69

Multiple Choice

How many half-lives has a fossilized tree undergone if it contains 12.5% of its original carbon-14?

• A) 1
• B) 2
• C) 3
• D) 4
• E) 16

---

Definitions:

Bond Ratings

Bond ratings are assessments made by credit rating agencies about the creditworthiness of a bond issuer, which affect the interest rates bonds carry.

Default Risk

The risk that a borrower fails to make the promised loan or bond repayments to the lender or bondholders.

Maturity Risk

The risk associated with the length of time until the face value of an investment is returned, affecting its susceptibility to interest rate changes.

Long-Term Bond

A bond with a maturity date extending beyond 10 years, offering higher yields to compensate for the increased risk associated with the longer duration.