summarize what have learned in Chapter 3 The Earth through Time topic, specifically the topic of Measurement of geologic time. (100 words)

In Chapter 3, "The Earth through Time," the measurement of geologic time is crucial for understanding Earth's history. Geologists utilize various methods to determine the age of rocks and fossils, primarily through relative dating and absolute dating techniques. Relative dating involves placing events in sequence without assigning specific ages, while absolute dating provides numerical ages using radiometric techniques, such as carbon dating. The geological time scale, a timeline of Earth's history divided into eons, eras, periods, and epochs, helps organize this information. These methods allow scientists to reconstruct Earth's past and comprehend the processes that have shaped our planet over millennia.