Earth's primordial atmosphere most likely included:
A)ammonia, oxygen, carbon dioxide, and water vapor.
B)carbon dioxide, water vapor, sulfur dioxide, and methane.
C)hydrogen, helium, and oxygen.
D)nitrogen, ozone, and sulfur dioxide.
E)all of the above.

Question

Quizplus · Accepted Answer

The most widely accepted hypothesis of Earth's early atmosphere suggests that it was primarily composed of carbon dioxide, water vapor, sulfur dioxide, and methane. There was very little oxygen present in the atmosphere at that time. This mixture of gases is thought to have formed through volcanic activity and other geological processes. Over time, the atmosphere changed as organisms evolved and began to produce oxygen through photosynthesis.

Earth's Primordial Atmosphere Most Likely Included