Due to Rock Cycle Processes, Finding Old Rocks by Radioactive

question 18

Multiple Choice

Due to rock cycle processes, finding old rocks by radioactive methods is difficult. What is the age of the oldest single rock found on Earth to date?

• A) more than 2 billion years
• B) more than 2.5 billion years
• C) more than 3 billion years
• D) more than 4 billion years

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Definitions:

Seven Months

A period of time equal to approximately 210 days or seven calendar months.

Amygdala

A region of the brain involved in processing emotions, fear responses, and reward.

Brain

The complex central organ of the nervous system responsible for control and coordination of bodily activities and the interpretation of sensory information.

Fear

An emotional response to perceived threats or danger, often resulting in a fight or flight reaction.