A Datable Mineral Crystal Contains 40% Parent Isotope

question 22

Multiple Choice

A datable mineral crystal contains 40% parent isotope. How many half-lives have passed since the crystal formed?

• A)1
• B)more than 1 but less than 2
• C)more than 2 but less than 3
• D)more than 3

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Definitions:

Dominant Person

An individual who exhibits superiority or control in a relationship or group setting, often influencing outcomes or decisions.

Primary Source

A primary source is an original document or firsthand account that has direct information about a topic, used in research and historical analysis.

Wheel Formation

A structured communication pattern in which all messages flow through a central hub or leader before being relayed to other members of the group.

Information Control

The process of managing access to information, including its creation, distribution, and storage.