To determine the estimated date of Earth's formation based on radioactive dating methods and mathematical inferences, we follow this reasoning:
1. Scientists use various methods to estimate the age of rocks and fossils, primarily focusing on radioactive dating. This involves measuring the decay of radioactive isotopes within the samples.
2. Over decades, extensive research and numerous tests across different sites globally have indicated a consistent age estimation for Earth.
3. By analyzing the data and mathematical modeling, scientists have determined an approximate age for Earth's formation.
Given the provided options:
A. 1.1 x 10^6 years ago
B. 2.4 x 10^6 years ago
C. 3.3 x 10 years ago
D. 4.6 x 10^9 years ago
Based on the scientific consensus and the results from dating techniques, it has been estimated that Earth's formation occurred approximately 4.6 x 10^9 years ago.
Therefore, the correct answer is:
D. 4.6 x 10^9 years ago.
