Question

the gases in earths early atmosphere are inferred to have come primarily from

1. meteor showers
2. melting of glacial ice
3. volcanic eruptions
4. evaporation of seawater

Explanation:

Early in Earth's history, volcanic eruptions released large amounts of gases such as water vapor, carbon dioxide, and nitrogen. Meteor showers mainly contribute to the addition of extraterrestrial materials but not the primary source of early - atmosphere gases. Glacial ice melting and seawater evaporation are processes that occur much later in Earth's history compared to the formation of the early atmosphere.

Answer:

1. volcanic eruptions