Radiometric Dating Is a Technique Used to Determine the Age

question 28

Multiple Choice

Radiometric dating is a technique used to determine the age of rocks. Geologists have used this technique to determine that

• A) Earth is about 4.6 billion years old, and life appeared on Earth about 3.8 billion years ago.
• B) Earth is about 3.4- 3.8 billion years old, and life appeared on Earth about 460 million years ago.
• C) Earth is about 34- 38 billion years old, and life appeared on Earth about 4.6 billion years ago.
• D) Earth is about 46 billion years old, and life appeared on Earth about 34- 38 billion years ago.

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