Question

fill in the blanks to complete each statement about the age of earth. according to scientific evidence, earth is approximately 4.6 years old. scientists used dating to determine earths age.

Explanation:

• The first blank is filled with "billion" as the commonly accepted age of Earth is approximately 4.6 billion years.
• The second blank is "radiometric" because radiometric dating techniques (such as uranium - lead dating) are used by scientists to determine the age of rocks and, by extension, the age of Earth.

Answer:

billion; radiometric