The Earth is about ___________ years old by ___________.
A)4 billion years old: radioactive dating
B)4 million; measuring Earth's orbital period around the Sun
C)4 billion; measuring Earth's orbital period around the Sun
D)4 million; radioactive dating

Question

Quizplus · Accepted Answer

The most widely accepted estimate for the age of the Earth is about 4 billion years old, determined through radioactive dating of rocks and minerals. Measuring Earth's orbital period around the Sun would not provide an accurate age estimate, and 4 million years is too young for the age of the Earth.

The Earth Is About ___________ Years Old by ___________

The Earth Is About _ Years Old by _