the early atmosphere of earth lacked ______ gas. a oxygen b nitrogen c ammonia d carbon dioxide
the early atmosphere of earth lacked ______ gas. a oxygen b nitrogen c ammonia d carbon dioxide
Answer
Brief Explanations:
The early Earth's atmosphere was mainly composed of gases like nitrogen, ammonia, and carbon - dioxide released from volcanic eruptions. Oxygen was not present in significant amounts until the evolution of photosynthetic organisms.
Answer:
A. oxygen