A Radiometric Age for a Mineral Crystal Within an Igneous

question 2

Multiple Choice

A radiometric age for a mineral crystal within an igneous rock measures the amount of time that has passed since the

• A) atoms within the crystal were part of a body of molten magma.
• B) crystal solidified.
• C) temperature of the crystal became equal to surface temperatures.
• D) temperature of the crystal became equal to the closure temperature for the mineral.

---

Definitions:

Criminal Cases

Legal proceedings involving individuals charged with conducting activities deemed illegal by law, which are adjudicated in a court of law.

Federal Court Appointments

The process of naming judges to the federal judiciary, typically involving nomination by the President of the United States and confirmation by the Senate.

Partisan

A supporter who is strongly attached to a specific cause, party, or person.

Ideological Concerns

Issues or debates that arise from deeply held beliefs or values within a society or political system.