question 24 of 25\nhow did the great oxidatio...
question 24 of 25\nhow did the great oxidation event affect the nonliving parts of earth?\na. it caused the formation of gray bands in rocks when oxygen interacted with iron.\nb. it led to the evolution of organisms that carried out only anaerobic respiration.\nc. it caused the formation of red bands in rocks when oxygen interacted with iron.\nd. it led to the evolution of organisms that could carry out aerobic respiration.
Answer
# Answer:
C. It caused the formation of red bands in rocks when oxygen interacted with iron.
# Brief Explanations:
During the great oxidation event, oxygen in the atmosphere reacted with iron - rich minerals in rocks. This oxidation of iron led to the formation of red - colored iron oxides (rust - like compounds), creating red bands in rocks. Options B and D pertain to living organisms, not non - living parts of Earth. Option A is incorrect as oxygen reacting with iron forms red, not gray, bands.