Scientists think the earth is approximately how old?

6 1/2 billion years

4 1/2 billion years

3 billion years

2 billion years

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Scientists think the earth is approximately how old?6 1/2 billion years4 1/2 billion years3 billion years2 billion years

Scientists think the earth is approximately how old?

6 1/2 billion years

4 1/2 billion years

3 billion years

2 billion years