Question

MEDAL AND FAN!!!!!!!!!
What caused dissolved iron to rust and deposit in banded iron formations?



outgassing


oxygen released by living cyanobacteria


huge amounts of rain


an asteroid impact

Answer 1

@GIitter

Answer 2

sorry@glitter if ur busy u can go :/ i didnt see your last comment in the other one :/

Answer 3

lol its ok, hun

Answer 4

Thanks so much :)

Answer 5

welcome!!!!!!!

Answer 6

i think its B But im not sure

Answer 7

am i close?

Answer 8

nevermind :/ lol