question 6 of 25\nwhat was the effect of the ...
question 6 of 25\nwhat was the effect of the great oxidation event on nonliving things?\na. it caused populations to fluctuate because they were not used to the environmental conditions.\nb. it led to the formation of gray bands in rocks when oxygen interacted with iron.\nc. it changed the chemical makeup of earths atmosphere.\nd. it led to the formation of red bands in rocks after all of the oceans available iron compounds had reacted with oxygen.
Answer
# Brief Explanations:
The Great Oxidation Event significantly altered Earth's atmosphere. Oxygen reacted with iron - rich compounds in the oceans and on land. After the iron in the oceans reacted with oxygen, red - colored iron oxides (rust) formed and were deposited, creating red bands in rocks. Option A refers to living populations, not non - living things. Option B is incorrect as gray bands are not characteristic of the Great Oxidation Event's effect on rocks. Option C is about the atmosphere but not as specific as the rock - related effect which is also about non - living things.
# Answer:
D. It led to the formation of red bands in rocks after all of the ocean's available iron compounds had reacted with oxygen.