Where is Nitrogen most abundant on Earth?

How did carbon dioxide, water, and nitrogen change during the first periods of Earth?

• How did the following gases (Carbon dioxide, Water, Nitrogen) change during these times: 1. The Early Earth had no atmosphere or ocean. 2. Then volcanic gases and comets vaporizing on impact with the Earth released gases that became the atmosphere. 3. Originally, the atmosphere was hot and all water was in the form of water vapor. 4. Then, as the Earth cooled, water vapor condensed and fell as rain, covering the Earth in one big ocean until continents formed.

• Answer:

  then there was the first ice age because earth couldnt get exposed to sun. after another million years or so when earth started to get exposed to sun because the dust and smoke and vapours cleared, the ice slowly started to melt. but during that time for the first time there was chemical reaction so hydrozen started to get separated fro oxyzen. so the oxygen was released in the atmosphere.