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Current Scientific Estimates Indicate That Earth Is Approximately 4

Question 3

Multiple Choice

Current scientific estimates indicate that Earth is approximately 4.5-4.6 ________ years old and that life began on Earth approximately 3.2-3.5 ________ years ago. Current scientific estimates indicate that Earth is approximately 4.5-4.6 ________ years old and that life began on Earth approximately 3.2-3.5 ________ years ago. A) billion; million B) million; million C) billion; billion D) million; billion


A) billion; million
B) million; million
C) billion; billion
D) million; billion

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