Question

what were the primary condition on earth tell your friend/cousin/ collegue.then ask your friends to name the gas which was absent without which today no life can exist...plz answer ...this is on nios secondary chapter History of Life on Earth...​

Answer 1

Answer:

For decades, scientists believed that the atmosphere of early Earth was highly reduced, meaning that oxygen was greatly limited. Such oxygen-poor conditions would have resulted in an atmosphere filled with noxious methane, carbon monoxide, hydrogen sulfide, and ammonia.

without oxygen we can't live today