As the Earth's crust and early atmosphere was forming, it is believed that played a huge role in adding gases such as water vapor, carbon dioxide, and ammonia to the atmosphere.

Volcanoes are thought to have played a significant role in adding gases such as water vapor, carbon dioxide, and ammonia to the atmosphere as the Earth's crust and early atmosphere formed.

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As the Earth's crust and early atmosphere was forming, it is believed that volcanoes played a huge role in adding gases such as water vapor, carbon dioxide, and ammonia to the atmosphere.

Explanation:

Volcanoes played a crucial role in our atmosphere's formation. When erupting, they spilled out gases such as carbon dioxide, ammonia, and nitrogen, besides water vapor. Those gases helped form the early atmosphere of our planet. The contribution of volcanoes, however, does not stop there. Due to volcanic activity, micro-continents were also formed on Earth's surface. Just as an additional note, other planets also show evidence of volcanic activity, such as Venus and Mars.

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