question 2 of 25\nhow did the great oxidation...
question 2 of 25\nhow did the great oxidation event affect the nonliving parts of earth?\na. it caused the formation of red bands in rocks when oxygen interacted with iron.\nb. it caused the formation of gray bands in rocks when oxygen interacted with iron.\nc. it led to the evolution of organisms that carried out only anaerobic respiration.\nd. it led to the evolution of organisms that could carry out aerobic respiration.
Answer
# Brief Explanations:
During the great oxidation event, oxygen in the atmosphere reacted with iron in rocks. This chemical reaction caused the formation of red - colored iron oxides, leading to red bands in rocks. Options C and D pertain to the evolution of organisms (living parts), not non - living parts of Earth. And oxygen reacting with iron forms red bands, not gray bands.
# Answer:
A. It caused the formation of red bands in rocks when oxygen interacted with iron.