Determining the age of our planet is difficult because much of the evidence relating to its formation and early history has been lost or altered over time. The Earth's surface is constantly changing due to processes such as erosion, plate tectonics, and volcanic activity, which can destroy or distort the original rock formations and other geological features that would provide clues to the planet's age. Additionally, the Earth has been bombarded by asteroids and other celestial bodies throughout its history, further complicating efforts to accurately date its formation. This makes it challenging for scientists to pinpoint an exact age for the Earth, leading to a range of estimates based on various types of evidence and dating techniques.
