Answers SS4 PGCPS EARTH SPACE OC SUMMER 2027 - 794243 Rocks and the Rock Cycle — Cumulative examQuestion 13

13

RCMultiple Choice

Rocks and the Rock Cycle — Cumulative exam

Question 13 • SS4: PGCPS EARTH SPACE OC (SUMMER 2027) - 794243

Which statement accurately describes a half-life?

Answer

A

A rock’s size is determined by half-life.

A

All stable and unstable elements have a half-life.

A

An atom of an element becomes half its original size in a half-life.

A

A half-life is the time required for half of a radioactive element to decay.

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