Unlike folks, an individual can’t actually assume the age of a rock from evaluate they. Nevertheless, you have seen the headlines: world is actually 4.6 billion yrs old. Dinosaurs disappeared about 65 million years back. That corn-cob found in an ancient local United states fire bowl was 1,000 years old.
How can doctors truly know these ages? Geologic era dating—assigning a get older to materials—is a full subject of its own.