The Evolution of Earth's Atmosphere

The video explores the conditions on early Earth over 4 billion years ago, highlighting the inhospitable atmosphere filled with deadly gases like methane and ammonia. Over time, these gases transformed into nitrogen, hydrogen, and carbon dioxide. Water vapor, emitted from Earth's interior, condensed as the planet cooled, leading to the formation of the first oceans.

How did water vapor contribute to the formation of oceans on early Earth?

What process led to the formation of liquid water from water vapor?