The Evolution of Life on Earth

What event in Earth's history happened 438 Ma?

- First atmosphere forms - First crust forms - First life forms - First life moves onto land - First oceans form - First oxygen produced through oxygenic photosynthesis

Answer:

The event that happened 438 Ma in Earth's history was the first life forms.

In Earth's history, the event that took place 438 million years ago was the emergence of the first life forms. Fossils from this time period reveal the presence of simple organisms such as bacteria and algae. These early life forms played a crucial role in paving the way for the development of more complex life forms over time.

Life on Earth has evolved significantly since then, leading to the diverse array of species that inhabit our planet today. Understanding the origins of life and how it has changed over millions of years provides valuable insights into the history and future of our planet.