Multiple Choice
In the early Earth, the development of ________ created oxygen gas in the atmosphere.
A) ozone
B) nitrogen fixation
C) cellular respiration
D) photosynthesis
E) eukaryotes
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q1: In each local environment, populations of living
Q2: Which one of the following taxonomic categories
Q3: _ was an early human ancestor thought
Q4: The branch of science that deals with
Q5: In the scientific process, the word _
Q7: The early atmosphere of Earth did not
Q8: Match each stage in the evolution of
Q9: The evolution of _ caused the death
Q10: In the history of Earth and in
Q11: There are several sources of scientific evidence