Explain that carbon dioxide dissolved in the oceans as the atmosphere changed.

In the subtopic How carbon dioxide decreased, this learning objective focuses on explain that carbon dioxide dissolved in the oceans as the atmosphere changed. Within The composition and evolution of the Earth's atmosphere, students should explain this idea in the exact curriculum context rather than as an isolated fact. Approved keywords for this objective include carbon dioxide and oceans. carbon dioxide means a colorless gas that is a significant component of Earth's atmosphere and is produced by respiration and combustion. Avoid students often think that carbon dioxide simply disappears from the atmosphere without any process involved; instead emphasize that carbon dioxide dissolves in the oceans, which is a key process in the changing composition of the atmosphere. For exam answers, focus on how carbon dioxide dissolved in oceans and its impact on atmospheric changes.