Greg and Stacey Have Recently Started Dating

question 19

Multiple Choice

Greg and Stacey have recently started dating.Who is LEAST likely to accurately predict how long their relationship will last?

• A) Stacey
• B) Joey,who is Greg's best friend
• C) Emily,who is Stacey's best friend
• D) Greg's mom

---

Definitions:

Unconformity

A surface within rock layers that represents a period of erosion or non-deposition, indicating a break in the geological record.

Index Species

Species that indicate the presence of particular environmental conditions, used by scientists to assess the health of ecosystems.

Fossilization

The process by which living organisms are preserved as fossils, including permineralization, cast and mold formation, and amber entrapment.

Isotopic Ages

The determination of the age of a material based on the decay rate of its radioactive isotopes, crucial for understanding geological and archaeological timelines.