I just need to do a time like scale. please help me to do it.
In the past there have been volcanic eruptions, asteroid impacts, and massive changes to climate which have all impacted life on Earth. Scientists have also uncovered that life has changed the atmosphere, oceans and surface of the Earth in return. What are the most important events in each Period of the geologic time scale that have changed the planet and life on Earth? (For example, the Ki mass extinction he gee end time scale thousa eriad wiped out many species and set the stage for the appearance of most modern mammal families in the early Tertiary Period). You will be responsible for constructing an accurate PowerPoint timeline that explains the coevolution of Earth's systems and life on Earth during each period of the geologic time scale.
