Describe the role of volcanic activity in shaping the Earth's early atmosphere.

Volcanic activity released gases such as carbon dioxide, water vapour, and nitrogen, which contributed to the composition of the early atmosphere. This outgassing was essential for creating an atmosphere that could support future developments in the Earth's environment.

A strong answer should directly address the approved learning objective to explain that water vapour condensed to form the oceans as the Earth cooled. This question belongs to The Earth's early atmosphere within The composition and evolution of the Earth's atmosphere, so the response should use that exact curriculum context rather than a generic statement. The answer is correct when it names the key idea, explains the link to water vapour, and keeps the wording specific to AQA GCSE revision.